Ramadhan, Muhammad Aryo, Herlinda Herlinda, Merrina Ulfa, Zulfa Ainy, and Puja Aulia. “Implementasi Kewirausahaan Sekolah Melalui Pengelolaan Kebun Sawit Di SMA Negeri 4 Tapung”. PEMA 5, no. 2 (June 21, 2025): 406–418. Accessed January 31, 2026. http://jurnal.permapendis-sumut.org/index.php/pema/article/view/1080.