Ilhaq, Wildan, and Harnanik Harnanik. “PROBLEM BASED LEARNING DALAM MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MATERI PASAR SASARAN”. Economic Education Analysis Journal 5, no. 3 (March 18, 2017): 800. Accessed November 24, 2024. https://journal.unnes.ac.id/sju/eeaj/article/view/13581.