Widyawati yeni. PENGARUH MOTIVASI BERSAING DAN DISIPLIN BELAJAR TERHADAP PRESTASI SISWA “MTS AL-HIDAYAH DONOWARIH KARANGPLOSO MALANG. psikovidya [Internet]. 1 [cited 21Dec.2025];16(2). Available from: https://psikovidya.wisnuwardhana.ac.id/index.php/psikovidya/article/view/49