Permatasari BI, Sari THNI. THE INFLUENCE OF PERCEPTIONS OF SELF-DISCIPLINE ON STUDENT MATHEMATICS LEARNING OUTCOMES. JdF [Internet]. 2022Dec.31 [cited 2024Apr.25];5(2):136-42. Available from: http://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/275