Roswanti E, Yasim S, Danial M. Developing English Teaching Materials through Self-Vlogging Based on Speaking at Tertiary Level. Al-Lisan [Internet]. 2023 Sep. 19 [cited 2025 Jun. 23];8(2):96-114. Available from: https://www.journal.iaingorontalo.ac.id/index.php/al/article/view/3397