JUNIAR, Juniar; SUMARNO, Sumarno; KARTIKOWATI, Sri. Analysis of Sustainable Teacher Professionalism Development Post-Certification in SD Negeri Medang Kampai District, Dumai City. Journal of Educational Sciences, [S. l.], v. 6, n. 1, p. 46–55, 2026. DOI: 10.31258/jes.6.1.p.46-55. Disponível em: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/1877. Acesso em: 18 may. 2026.