Sumbertada, Ketut. “Uses Flashcards to Increase the Vocabulary of Elementary School Students”. Jurnal Penelitian Mahasiswa Indonesia 4, no. 3 (July 17, 2024): 326–335. Accessed July 5, 2025. https://jurnal.stkipahsingaraja.ac.id/index.php/jpmi/article/view/870.