Ritonga, Sinta Nuria, et al. “Flashcards As a Tool for Vocabulary Enhancement: A Study on Tenth Grade Students at SMA Negeri 1 Padang Bolak Julu”. ETANIC Journal Of English Language Teaching And Applied Linguistics, vol. 2, no. 1, Feb. 2024, pp. 19-42, doi:10.55266/journaletanic.v2i1.369.