Harahap, M., J. H. . Panjaitan, and K. Yasin. “Implementasi Model Project Based Learning Dalam Meningkatkan Kreativitas Siswa Di SMP Negeri 2 Tambusai”. EduSpirit : Jurnal Pendidikan Kolaboratif, vol. 1, no. 4, Nov. 2024, pp. 136-41, https://journal.makwafoundation.org/index.php/eduspirit/article/view/964.