Fina Fatika Nurmala Sari et al. 2023. Using Flashcard Media to Increase Students’ Vocabulary Mastery. Sinar Dunia: Jurnal Riset Sosial Humaniora dan Ilmu Pendidikan. 2, 2 (May 2023), 174–185. DOI:https://doi.org/10.58192/sidu.v2i2.827.