Riska Alfana Petingko, Baharuddin Paloloang, & Evie Awuy. (2020). PENERAPAN MODEL PROBLEM BASED LEARNING PADA MATERI KELILING DAN LUAS DAERAH LAYANG-LAYANG . Jurnal Elektronik Pendidikan Matematika Tadulako, 7(3), 254–264. Retrieved from https://jurnal.fkip.untad.ac.id/index.php/jpmt/article/view/532