ZAHRA ELFA YUDA, S.; LAKSMANA CS, A.; AFRIDA, A.; HAPSARI, N. T.; SAGOUGOUK, O. .; SURYANI, M. STRENGTHENING EDUCATIONAL FOUNDATIONS AND PRINCIPLES FOR 21ST-CENTURY MATHEMATICS TEACHER PROFESSIONALISM DEVELOPMENT. Algebra : Jurnal Pendidikan, Sosial dan Sains, [S. l.], v. 5, n. 1, p. 135–142, 2025. DOI: 10.58432/algebra.v5i1.1423. Disponível em: https://ejournal.yana.or.id/index.php/algebra/article/view/1423. Acesso em: 22 apr. 2026.