Barjesteh, H., and S. Alinia Omran. “The Comparative Effects of L1 Equivalent Versus Contextualized Vocabulary Instruction: EFL Learners’ Vocabulary Retention in Focus”. AJELP: Asian Journal of English Language and Pedagogy, Vol. 7, no. 1, June 2019, pp. 38-49, doi:10.37134/ajelp.vol7.1.4.2019.