NGOC TRAN, H.; DUC TRAN, T.; DOAN NGOC NGUYEN, T.; THI NGOC NGUYEN, M.; XUAN TRAN, Q. Exploring English Self-Efficacy Among Vietnamese Undergraduates: The Role of Gender and Academic Major. OKARA: Jurnal Bahasa dan Sastra, v. 19, n. 2, p. 206–218, 30 Nov. 2025.