YASKHUDI, A. K.; SITOMPUL, N. C. .; HARTONO. Pengembangan E Modul Sejarah SMK Berbasis Problem Based Learning (PBL) pada Materi Orde Baru Kelas X. Journal of Practice Learning and Educational Development , [S. l.], v. 2, n. 4, p. 157–162, 2022. DOI: 10.58737/jpled.v2i4.72. Disponível em: https://digitalpress.gaes-edu.com/index.php/jpled/article/view/72. Acesso em: 4 jul. 2024.