PURWANTO E. MENUMBUHKAN KREATIVITAS SISWA MELALUI PEMBELAJARAN GRAFIK FUNGSI EKSPONEN DENGAN PENDEKATAN OPEN-ENDED PROBLEM. learning [Internet]. 2021Sep.7 [cited 2026Apr.3];1(2):194-203. Available from: https://jurnalp4i.com/index.php/learning/article/view/457