1.
Yunitasari N, Grendy Mattew. Pengaruh Model Problem Based Learning Terhadap Hasil Belajar Ekonomi Siswa Kelas XI SMA Negeri 1 Silahisabungan . J-P-ee [Internet]. 2022Nov.10 [cited 2024May8];1(1):12-21. Available from: https://ejournal.uhn.ac.id/index.php/entrepreneurship/article/view/980