Wahyuni S, Yulaida H. Flashcards as A Means to Improve EFL Learners’ Vocabulary Mastery. JEELS [Internet]. 2014 Nov. 20 [cited 2024 Nov. 23];1(1):47-61. Available from: https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/jeels/article/view/19