Sam Hermansyah (2026) “Gamifying English Vocabulary Learning: The Role of Duolingo in Enhancing EFL Students’ Vocabulary Mastery in UPT SMPN 2 Pangsid”, INTERACTION: Jurnal Pendidikan Bahasa, 13(3), pp. 855–872. doi: 10.36232/interactionjournal.v13i3.6690.