Masykur, Masykur. “***NOTICE OF RETRACTION*** An Analysis of Mobile Dictionaries in Vocabulary Teaching”. Academic Journal Perspective : Education, Language, and Literature 5, no. 1 (July 11, 2017): 29–35. Accessed July 24, 2025. https://jurnal.ugj.ac.id/index.php/Perspective/article/view/543.