Sari, S.N., Kamila, R., Pakpahan, S.R. and Siregar, F.W. 2025. IMPLEMENTATION OF PROFESSIONALISM BY MATHEMATICS TEACHERS IN MANAGING LEARNING AT UPT SMP NEGERI 35 MEDAN. Algebra : Jurnal Pendidikan, Sosial dan Sains. 5, 1 (Aug. 2025), 41–45. DOI:https://doi.org/10.58432/algebra.v5i1.1326.