SITORUS, E. J. S. .; AULIA, R.; SARAGIH, N. S.; LUBIS, J. A. STRATEGIES FOR IMPROVING TEACHER PROFESSIONALISM IN REALIZING INNOVATIVE AND EFFECTIVE LEARNING AT SMA NEGERI 8 MEDAN. Algebra : Jurnal Pendidikan, Sosial dan Sains, [S. l.], v. 5, n. 3, p. 600–604, 2025. DOI: 10.58432/algebra.v5i3.1350. Disponível em: https://ejournal.yana.or.id/index.php/algebra/article/view/1350. Acesso em: 25 apr. 2026.