Ririn Rahel Tampubolon, Susy Alestriani Sibagariang, Anggun Tiur Ida Sinaga. Pengaruh Model Pembelajaran Project Based Learning Terhadap Hasil Belajar Ekonomi Siswa Kelas X SMA Swasta Kampus Nommensen T.A. 2025/2026. PIJAR [Internet]. 2026 Apr. 30 [cited 2026 Jun. 7];4(2):910-22. Available from: https://www.putrapublisher.org/index.php/pijar/article/view/1737