INCREASING STUDENTS VOCABULARY MASTERY BY USING FLASHCARDS AT SMP NEGERI 2 ESSANG. SoCul : IJRCCSSCLI [Internet]. 2023 Jul. 6 [cited 2025 Dec. 21];2(2):513 521. Available from: https://ejurnal.unima.ac.id/index.php/socul/article/view/2970