RAMADHAN, A. A.; JALINUS, N. The development of e-module based on learning models of self directed learning in welding subject. Jurnal Pendidikan Teknologi Kejuruan, Padang, Indonesia, v. 4, n. 2, p. 59–64, 2021. DOI: 10.24036/jptk.v4i2.16923. Disponível em: https://jptk.ppj.unp.ac.id/index.php/jptk/article/view/169. Acesso em: 20 nov. 2024.