Imam nur Aziz, and Mariana Ulfah Hoesny. “Duolingo Application As Media in Teaching Vocabulary Mastery”. JEET, Journal of English Education and Technology 4, no. 01 (March 16, 2023): 58-71. Accessed October 20, 2026. https://jeet.fkdp.or.id/index.php/jeet/article/view/76.