PURWANTI, A.; ZARGER, A. A. The Influence of Certification on Teachers’ Motivation and Teachers’ Performance. PPSDP International Journal of Education, [S. l.], v. 4, n. 1, p. 144–149, 2025. DOI: 10.59175/pijed.v4i1.400. Disponível em: https://ejournal.ppsdp.org/pijed/article/view/400. Acesso em: 17 jun. 2026.