SANTOSO , D. A. .; WIJAYA, A. Grapari Information Technology Service Analysis of Telkomsel Salatiga Using ITIL V3 Domain Service Operation. Journal of Information Technology Ampera, [S. l.], v. 1, n. 3, p. 144–154, 2020. Disponível em: https://www.journal-computing.org/index.php/journal-ita/article/view/30. Acesso em: 13 aug. 2026.