awal MAN. Pengaruh Efikasi Diri Matematika Terhadap Prestasi Belajar Matematika Siswa Di Masa Pandemi Covid-19 . JPMR [Internet]. 2022 Dec. 31 [cited 2024 May 3];7(3):26-34. Available from: https://ejournal.unib.ac.id/jpmr/article/view/24041