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. DOI: 10.51519/journalita.volume1.isssue3.year2020.page144-154. Disponível em: https://journal-computing.org/index.php/journal-ita/article/view/30. Acesso em: 30 may. 2023.