EFFENDI, Andi. Teacher Competency Improvement Efforts in the Preparation of Syllabus and Lesson Plans Through Ongoing Academic Supervision at SMP Negeri 6 Dumai. Journal of Educational Sciences, [S. l.], v. 7, n. 3, p. 416–424, 2023. DOI: 10.31258/jes.7.3.p.416-424. Disponível em: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/300. Acesso em: 25 jan. 2026.