PUTRA, I. D.; ANGGRAINI, D. T. Implementation of Presidential Regulation Number 87 of 2017 about Strengthening Student’s Character Education. PPSDP International Journal of Education, [S. l.], v. 2, n. 2, p. 197–202, 2023. DOI: 10.59175/pijed.v2i2.84. Disponível em: https://ejournal.ppsdp.org/pijed/article/view/84. Acesso em: 17 jun. 2026.