2026. The Effectiveness Of Flashcard-Based Instruction In Enhancing English Vocabulary Mastery Among EFL Learners: A Systematic Literature Review. Jurnal Kajian Ilmu Pendidikan (JKIP). 7, 1 (Jan 2026), 455–462. DOI:https://doi.org/10.55583/jkip.v7i1.1975.