E-CRM System Development Strategy As An Effort To Improve Computer Services And Sales. ITEJ (Information Technology Engineering Journals), [S. l.], v. 11, n. 1, p. 23–34, 2026. DOI: 10.24235/itej.v11i1.301. Disponível em: https://itej.uinssc.ac.id/index.php/itej/article/view/301. Acesso em: 12 jun. 2026.