MUNAWAROH, T.; RUHIYAT, Y.; JUNIARDI, Y. Trends of English Teaching Materials in Schools: Systematic Literature Review. PPSDP International Journal of Education, [S. l.], v. 2, n. 2, p. 470–477, 2023. DOI: 10.59175/pijed.v2i2.149. Disponível em: https://ejournal.ppsdp.org/index.php/pijed/article/view/149. Acesso em: 10 jul. 2026.