Ilhaq, W. and Harnanik, H. (2017) “PROBLEM BASED LEARNING DALAM MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MATERI PASAR SASARAN”, Economic Education Analysis Journal, 5(3), p. 800. Available at: https://journal.unnes.ac.id/sju/eeaj/article/view/13581 (Accessed: 18July2024).