Clara ED, Napitupulu S. The Effectiveness of Quizlet-Based Guided Discovery Learning on Vocabulary Mastery at a Junior High School in Pematangsiantar. ELTICS [Internet]. 2026 Jan. 23 [cited 2026 May 2];11(1):39-48. Available from: https://journal.upy.ac.id/index.php/eltics/article/view/9307