“The Efficiency of Requesting Process for Formal Business-Documents in Indonesia: An Implementation of Web Application Base on Secure and Encrypted Sharing Process”. The Asian Journal of Technology Management (AJTM) 7, no. 2 (December 18, 2014): 83–92. Accessed September 13, 2026. https://journal.sbm.itb.ac.id/index.php/ajtm/article/view/1197.