Mulyadi R, Herizal, Fonna M. Analisis self-efficacy siswa sekolah menengah atas (SMA) dalam pembelajaran matematika di masa pandemi covid-19. JPI [Internet]. 2023 Dec. 31 [cited 2026 May 26];4(2):65-72. Available from: https://jurnalpendidikindonesia.com/index.php/jpi/article/view/43