Sari, Sri Nila, Rahma Kamila, Siti Ramadhani Pakpahan, and Fatma Wati Siregar. “IMPLEMENTATION OF PROFESSIONALISM BY MATHEMATICS TEACHERS IN MANAGING LEARNING AT UPT SMP NEGERI 35 MEDAN”. Algebra : Jurnal Pendidikan, Sosial dan Sains 5, no. 1 (August 24, 2025): 41–45. Accessed September 17, 2026. https://ejournal.yana.or.id/index.php/algebra/article/view/1326.