MUKHLISIN, M. K. .; ULFATIN, N. .; MUYASSAROH, M. An Implementation of an Internal Quality Assurance System in Improving the Quality of Senior High School Education: A Systematic Literature Review . English Language Teaching Journal, [S. l.], v. 4, n. 1, p. 1–12, 2024. Disponível em: https://ejournal.alqolam.ac.id/index.php/eltj/article/view/1287. Acesso em: 27 may. 2024.