1.
Nurcahyono NA, Sani S. FREE LEARNING IN LEARNING CALCULUS BASED ON PROBLEM POSING AND PROBLEM-SOLVING. JdF [Internet]. 2021Jun.30 [cited 2024Dec.22];3(2):1-9. Available from: https://jurnal.pmat.uniba-bpn.ac.id/index.php/DEFERMAT/article/view/77