Simanjuntak, Marihot, et al. “Optimization of Web-Based Bill of Lading Document Issuance Mechanism to Improve PT. Container Maritime Activities Jakarta”. International Review of Management and Marketing, vol. 9, no. 6, Oct. 2019, pp. 32-37, https://econjournals.org.tr/index.php/irmm/article/view/8735.