WIJAYANTO, B.; ADHETYA, D. Content Analysis of Geography Subject based on Olimpiade Sains NasionaL (OSN) Insenior High School of Padang City. Journal of Learning Improvement and Lesson Study, [S. l.], v. 1, n. 1, p. 25–30, 2021. DOI: 10.24036/jlils.v1i1.6. Disponível em: https://jlils.ppj.unp.ac.id/index.php/jlils/article/view/6. Acesso em: 15 jan. 2025.