Antón, Eneko, and Jon A. Duñabeitia (2020). "Better to Be Alone than in Bad Company: Cognate Synonyms Impair Word Learning" Behavioral Sciences 10, no. 8: 123. https://doi.org/10.3390/bs10080123
Al-Obaydi, L. H. (2020). Risk-taking and Self-actualization in EFL Positive Classroom Environment. ELS Journal on Interdisciplinary Studies in Humanities, 3(3), 352-365. DOI: https://doi.org/10.34050/elsjish.v3i3.10877
Bakhtiar, A., Webster, E. A., & Hadwin, A. F. (2018). Regulation and socio-emotional interactions in a positive & a negative group climate. Metacognition Learning, 13, 57-90.
Donaghy, K. and Xerri, D. (2017). The Image in English Language Teaching. Malta: Ministry for Education and Employment
Corder, P. (1966). The visual element in language teaching. London: Longman. Cowan, J. 1998. On Becoming an Innovative University Teacher: Reflection in Action. Milton Keynes, UK: Open University.
González-Zamar, Mariana-Daniela; Abad-Segura, Emilio; Luque de la Rosa, Antonio; López-Meneses, Eloy. (2020). "Digital Education and Artistic-Visual Learning in Flexible University Environments: Research Analysis" Educ. Sci. 10, no. 11:294. https://doi.org/10.3390/educsci10110294
Harandi, S. R. (2015). Effects of e-learning on students' motivation. Procedia - Social and Behavioral Sciences, 181 (2015), pp. 423 – 430
Horwitz, E., Horwitz, M., & Cope, J. (1986). Foreign language classroom anxiety. Modern LanguageJournal, 70, pp. 125-132.
Hayakawa, Sayuri; Bartolotti, James; van den Berg, Aimee; Marian, Viorica. (2020). "Language Difficulty and Prior Learning Influence Foreign Vocabulary Acquisition" Languages 5, no. 1:2. https://doi.org/10.3390/languages5010002
Hiebert, Elfrieda H.; Scott, Judith A.; Castaneda, Ruben; Spichtig, Alexandra. (2019). "An Analysis of the Features of Words That Influence Vocabulary Difficulty" Educ. Sci. 9, no. 1:8. https://doi.org/10.3390/educsci9010008
Keller John & Suzuki Katsuaki, (2004), published: (2010), Learner motivation and e-learning design: A multinationally validated process, Journal of Educational Media, Vol 29, No 3, pp. 229-239
Klimova, Blanka; Polakova, Petra. (2020). "Students’ Perceptions of an EFL Vocabulary Learning Mobile Application" Educ. Sci. 10, no. 2:37. https://doi.org/10.3390/educsci10020037
Kolb, D. A. (1984). Experiential Learning: Experience as the Source of Learning and Development. Englewood Cliffs, New Jersey: Prentice-Hall.
Koutsikou, Maria; Christidou, Vasilia; Papadopoulou, Maria; Bonoti, Fotini. (2021). "Interpersonal Meaning: Verbal Text–Image Relations in Multimodal Science Texts for Young Children" Educ. Sci. 11, no. 5:245. https://doi.org/10.3390/educsci11050245
Krashen, S. (1982). Principles and practice in second language acquisition. Oxford: Pergamon Press.
Legault, Jennifer; Zhao, Jiayan; Chi, Ying-An; Chen, Weitao; Klippel, Alexander; Li, Ping. (2019). "Immersive Virtual Reality as an Effective Tool for Second Language Vocabulary Learning" Languages 4, no. 1:13. https://doi.org/10.3390/languages4010013
Luft, S. D. (2007). Language Classroom Risk-taking Behavior in a Performed Culture-based Program (Unpublished master’s thesis). Ohio State University, Columbus, OH.
Martínez-García, María T. (2019). "Using Eye-Movements to Track Bilingual Activation" Languages 4, no. 3: 59. https://doi.org/10.3390/languages4030059
Quinn, Jamie M.; Folsom, Jessica S.; Petscher, Yaacov. (2018). "Peer Effects on Vocabulary Knowledge: A Linear Quantile Mixed-Modeling Approach" Educ. Sci. 8, no. 4: 181. https://doi.org/10.3390/educsci8040181
Russell, V. (2020). Language anxiety and the online learner. Foreign Language Annals, 53, 338–352.
Rovai Alfred, Ponton Michael, Wighting Mervyn, Baker Jason, (2007), A Comparative Analysis of Student Motivation in Traditional Classroom and E-Learning Courses, Vol 6, Issue 3, pp. 413-432
Taran Carmen (2005), Motivation Techniques in eLearning, International Conference on Advanced Learning Technologies
Shi, L. (2014). Scaffolding for social personalized adaptive e-learning (doctoral dissertation). Retrieved from http://wrap.warwick.ac.uk/67201 on 1 July 2021
Vallerand, R. J., Pelletier, L. G., Blais, M. R., Briere, N. M., Senecal, C., & Vallieres, E. F. (1992). The Academic Motivation Scale: A measure of intrinsic, extrinsic, and motivation in education. Educational and Psychological Measurement, 52(4), 1003-1017.