PONTAN, D.; ALEXANDER, A.; SALMAN, S.; BERMAN, B. Evaluating Cost Efficiency in SMO Earthwork Service Contracts Using CPI, BV, and Variance-Based Approach. International Journal of Cyber and IT Service Management (IJCITSM), [S. l.], v. 6, n. 2, p. 128–142, 2026. DOI: 10.34306/ijcitsm.v6i2.268. Disponível em: https://iiast.iaic-publisher.org/ijcitsm/index.php/IJCITSM/article/view/268. Acesso em: 30 jun. 2026.