SYLVIA, T.; LIBER TOMMY HUTABARAT. A Development of E-Learning-Based Instructional Media for English At Medan Civil Aviation Academy. Data Science: Journal of Computing and Applied Informatics, [S. l.], v. 5, n. 1, p. 1–10, 2021. DOI: 10.32734/jocai.v5.i1-4350. Disponível em: https://idjpcr.usu.ac.id/JoCAI/article/view/4350. Acesso em: 8 sep. 2025.