GAWAD, May Ann. Environmental Sustainable Practices in the Selected Higher Education Institutions in Calapan City. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 60, n. 3, p. 31–35, 2021. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/13262. Acesso em: 15 sep. 2025.