Haji S, Yumiati Y. Penguasaan Guru dan Calon Guru Matematika Terhadap Konsep Persamaan Kuadrat. JPMR [Internet]. 2021 Mar. 31 [cited 2025 Apr. 26];6(1):88-9. Available from: https://ejournal.unib.ac.id/jpmr/article/view/14678