Zulfanny, M. A., and W. Rudianto. “IT Valuation Deployer Information System Implementation at PT Telkom Indonesia Access B3E Approach: IT Valuation Deployer Information System Implementation at PT Telkom Indonesia Access B3E Approach”. Jurnal Mantik, vol. 3, no. 4, Feb. 2020, pp. 161-6, https://iocscience.org/ejournal/index.php/mantik/article/view/546.