Haryanti, Tining. “Service Catalog Management Dan Service Level Management Pada Layanan E- Commerce (Studi Kasus: E-Commerce Universitas)”. Computing Insight : Journal of Computer Science 2, no. 2 (Januari 6, 2021). Diakses Juni 21, 2025. https://journal.um-surabaya.ac.id/CI/article/view/7015.