Bošković Z. (1997). Superiority effects with multiple wh-fronting in Serbo-Croatian. Lingua 102: 1-20.
Bošković Z. (1998). Multiple wh-fronting and economy of derivation. In Proceedings of the West Coast Conference on Formal Linguistics 16, 49-63. Stanford, Calif.: CSLI Publications.
Bošković Z. (1999). On multiple feature-checking: Multiple wh-fronting and multiple head movement. In working minimalism, (eds). Samuel Epstein and Norbert Hornstein, 159-187.Cambridge, Mass: MIT Press.
Chomsky N. (1973). Conditions on transformations. In a festschrift for Morris Halle, (eds). Stephen R. Anderson and Paul Kipars ky. 232–286. New York: Holt, Rinehart and Winston.
Chomsky N. (1977). On wh-movement. In P. W. Culicover, T. Wasow, and A. Akmajian (eds). Formal Syntax. New York: Academic Press: 71-132.
Chomsky N. (1995). The Minimalist Program. Cambridge, MA: MIT Press.
Chomsky N. (2000). Minimalist Inquiries. In Step by Step: Essays on Minimalism in Honor of Howard Lasnik, (eds). R. Martin, D. Michaels and J. Cambridge: MIT Press 89-156.
Chomsky N. (2001a). Beyond Explanatory Adequacy, unpublished manuscript, MIT.
Chomsky N. (2001b). Derivation by phase. In Ken Hale: A Life in Language, (ed). M. Kenstowicz Cambridge: MIT Press.
Dabir-Moghaddam M. (1991). Theoretical Linguistics, Emergence and Developments of Generative Grammar. Tehran: Soxan Press.
Falk, Y. N. (2012). Superiority Effect. http://pluto.mscc.huji.ac.il/~msyfalk.
Ganjavi Sh. (2007). Direct Object in Persian. Doctoral Dissertation. University of Southern California.
Ginzburg, Jonathan and Ivan A. Sag (2000) Interrogative Investigations: The Form, Meaning, and Use of English Interrogatives. Stanford, Calif.: CSLI Publications.
Huang CTJ. (1982). Move WH in a language without wh-movement. The Linguistic Review 1: 369–416.
Kahnemuyipour A. (2001). On wh-questions in Persian. Canadian Journal of Linguistics 46 (1/2):41-62.
Khym, H.G. (2017). A Study on the Exceptional Cases to the Anti-Superiority Effect in Korean and Japanese: A Morpho-Syntactic Approach, International Journal of Advanced Cultural Technology 5 (1): 9-16.
Lotfi AR. (2003). Persian wh-riddles. In Boeckx, C & Grohmann, K. K. (eds). Multiple Wh-Fronting. Amsterdam: Benjamins 161-186.
Pesetsky D. (2000). Phrasal Movement and Its Kin. Cambridge, MA: MIT Press.
Pollock JY. (1989). Verbal movement, universal grammar and the structure of IP. Linguistic Inquiry 20:365-424.
Rashidi, M. (1398). Investigating multiple interrogative constructions in Mazandarani language: minimalist approach. Rokhsare Zaban. 10: 146-162.
Rizzi L. 1997. The fine structure of the left periphery. In L. Haegeman (ed). Elements of Grammar, Kluwer, Dordrecht 281-337.