The Effectiveness Of Flashcard-Based Instruction In Enhancing English Vocabulary Mastery Among EFL Learners: A Systematic Literature Review. JKIP [Internet]. 24 Januari 2026 [dikutip 30 Juli 2026];7(1):455-62. Tersedia pada: https://journal.al-matani.com/index.php/jkip/article/view/1975