Clara, E.D. and Napitupulu, S. 2026. The Effectiveness of Quizlet-Based Guided Discovery Learning on Vocabulary Mastery at a Junior High School in Pematangsiantar. Journal of English Language Teaching and English Linguistics. 11, 1 (Jan. 2026), 39–48. DOI:https://doi.org/10.31316/eltics.v11i1.9307.