LUBIS, A. A.; TIRTAYASA, S. Impact of Education and Training on Employee Performance at the North Sumatra Center for Teachers and Educational Personnel (BBGTK). Digital Business: Tren Bisnis Masa Depan, [S. l.], v. 17, n. 2, p. 24–31, 2026. Disponível em: https://ejournal.cria.or.id/index.php/db/article/view/429. Acesso em: 4 jun. 2026.