DROUGAS, V.; DROUGA, I. V. . Study of the Fatigue of Chemistry Teachers in the Last Hours of Teaching the School Program in the Classroom. International Journal of Education Research and Development, [S. l.], v. 4, n. 2, p. 103–112, 2024. DOI: 10.52760/ijerd.v4i2.56. Disponível em: https://e-journal.yayasancec.or.id/index.php/corolla/article/view/56. Acesso em: 14 feb. 2026.