N. H. N. Azahra, S. Isnaini, I. Sudarmaji, H. Nuraini, L. Forsia, and N. Nirmala, “Implementing the Use of Flashcards to Improve Students’ Vocabulary Mastery; Classroom Action Research”, basicedu, vol. 8, no. 1, pp. 225–232, Jan. 2024.