AQUINO, E. J. Increasing Academic Performance on Earth Science Among Grade 9 Learners through Developed Self-Learning Materials. International Journal of Contemporary Sciences (IJCS), [S. l.], v. 1, n. 9, p. 503–516, 2024. DOI: 10.55927/ijcs.v1i9.7741. Disponível em: https://journal.formosapublisher.org/index.php/ijcs/article/view/7741. Acesso em: 19 sep. 2024.