Enhancing the Competence of Teachers at SMK Negeri 5 Sijunjung through IT Essentials Cisco Training. J-COSCIS : Journal of Computer Science Community Service, [S. l.], v. 6, n. 1, p. 1–11, 2026. DOI: 10.31849/z28afm82. Disponível em: http://journal.unilak.ac.id/index.php/jcoscis/article/view/30162. Acesso em: 13 jun. 2026.