دبیرمقدم، م. (1369). پیرامون "را" در زبان فارسی. مجلۀ زبانشناسی، 7(1)، 2-60.
دبیرمقدم، م. (1383). زبان فارسی و نظریههای زبانی: در جستجوی چارچوبی برای تدوین دستور جامع زبان فارسی. نامۀ فرهنگستان، دستور، 1 (1)، 93-129.
راسخ مهند، م. (1389). مفعولنمایی افتراقی: نگاهی دیگر به «را». زبانشناسی و گویشهای خراسان، دانشگاه فردوسی مشهد، 2(2)، 1-13.
صادقی، ع. ا. (1349). "را" در زبان فارسی امروز. نشریۀ دانشکدۀ ادبیات و علوم انسانی دانشگاه تبریز، 93، 2-22.
معزّیپور، ف. (1397). «را» نشانۀ مبتدای ثانویه؟. ویژهنامۀ نامۀ فرهنگستان، دستور، 14، 75-128.
ناتل خانلری، پ. (1351). دستور زبان فارسی، تهران: بنیاد فرهنگ ایران.
Aissen, J. (2003). Differential object marking: Iconicity versus economy. Natural Language and Linguistic Theory, 21, 435-483.
Böhm, S, (2015). Differential object marking in standard Turkish and Caucasian Urum" STUF - Language Typology and Universals, 68 (4), 421-438.
Bossong, G. (1985). Empirische universalienforschung: Differentielle objektmarkierung in der neuiranischen sprachen. Tübingen: Narr
Browne, W. (1970). More on definiteness markers: Interrogatives in Persian. Linguistic Inquiry, 1 (3), 359-363.
Comrie, B. (1989). Language universals and linguistic typology. Second edition. University Chicago: University of Chicago Press.
Comrie, B. (2019). Iranian languages and linguistic typology. In A. Korangy & B. Mahmoodi-Bakhtiari (Eds.), Essays on typology of Iranian languages (pp. 1-4). Berlin, Boston: De Gruyter Mouton. https://doi.org/10.1515/9783110604443-001
Craig, C. (1977). The Structure of Jacaltec. Austin: University of Texas Press.
Croft, W. (1990). Typology and universals. Cambridge: Cambridge University Press.
Czypionka, A. (2013). The interplay of object animacy and verb class in representation building. Humboldt-Universität zu Berlin: PhD Dissertation. Retrieved from https://dnb.info/105439640X/34
Dabir-Moghaddam, M. (1992). On the (in)dependence of syntax and pragmatics: Evidence from the postposition -rā in Persian. In D. Stein (Ed.). Cooperating with written texts: The pragmatics and comprehension of written texts (pp. 549-573). Berlin: Mouton de Gruyter.
Dabir-Moghaddam, M. (1369/1990). About "rā" in Persian.
Dabir-Moghaddam,, M. (1383/2004). The Persian language and linguistic theories: In search of framework for the comprehensive Persian grammar.
Dahl, S. (2008). Animacy and egophoricity: Grammar, ontology and phylogeny. Lingua, 118, 141–150.
Dalrymple, M. and I. Nikolaeva (2011). Objects and information structure. Cambridge: Cambridge University Press.
Enç, M. (1991). The semantics of specificity. Linguistic Inquiry, 22 (1), 1-25.
Frawley, W. (1992). Linguistic semantics. New York & London: Routledge.
Galdeano, R. B. (2017). Differential object marking in Catalan: Contexts of appearance and analysis. Master thesis in Cognitive Science and Language. Universitat Autònoma de Barcelona. Retrieved from
http://diposit.ub.edu/dspace/bitstream/2445/117104/1/Differential%20Object%20Marking%20in%20Catalan_Rutbenito.pdf
Kaan, E. (1998). Sensitivity to NP-type: Processing subject-object ambiguities in Dutch. Journal of Semantics, 15, 335-354.
Kager, R. (2004). Optimality theory. Cambridge: Cambridge University Press.
Karimi, S. (1989). Aspects of Persian syntax, specificity and the theory of grammar. Ph.D dissertation, University of Washington.
Karimi, S. (1990). Obliqueness, specificity, and discourse functions: râ in Persian. Linguistic Analysis 20, 139–191.
Karimi, S. (2003). On object positions, specificity, and scrambling in Persian. In S. Karimi (Ed.). Word order and scrambling (pp. 91-126). Malden and Oxford: Blackwell.
Krause, E., and von Heusinger, K. (2019). Gradient effects of animacy on differential object marking in Turkish. Open Linguistics, 5, 171–190.
Lambton, A. (1984). Persian grammar.Cambridge: Cambridge University Press.
Lazard, G. (1982). Le morphème râ en Persan et les relations actancielles. Bulletin de la société de linguistique de Paris, 73, 177–208.
Lazard, G. (1984). Actance variations and categories of the object. In F. Plank (Ed.). Objects: Towards a theory of grammatical relations (pp. 269-292). London: Academic Press.
Moezzipour, F. (1397/2018). Is "rā" a marker of secondary topic?
Natel-Khanlari, P. (1351/1972). Persian grammar.
Ojeda, A. (1991). Definite descriptions and definite generics. Linguistics and Philosophy, 14, 367–397.
Peterson, D. (1974). Noun phrase specificity. PhD dissertation, University of Michigan.
Rahimian, J. and Hajiani, F. (2009). Semantic-pragmatic function of râ in Persian: A diachronic and synchronic study. Journal of Indo-European Studies Monograph, 56, 399-420.
Rāsekh Mahand, M. (1389/2010). Differential object marking: Another view of "rā".
Roberts, J. (2005). Râ in Persian and information structure. In Proceedings SIL International. Retrieved from http://linguistics.buffalo.edu/people/faculty/vanvalin/rrg.html.
Rodríguez-Mondoñedo, M. (2007). The syntax of objects: Agree and differential object marking. PhD Dissertation from University of Connecticut. Retrieved from https://www.researchgate.net/publication/27401492_The_syntax_of_objects_Agree_and_differential_object_marking
Sadeqi, A. A. (1349/1970). "Rā" in modern Persian.
Shokouhi, H., and Kipka, P. (2003). A discourse study of Persian râ. Lingua, 113 (10), 953-966.