Wiwik Sumarmi, Ribangun Bamban Jakaria, Nani Sutarni, Jems KR Maay, Mariia Pavlovna Glyzina. 2020. “Study of Cost, Time and Quality Modeling for Improving Project Management Decision Making”. International Journal of Advanced Science and Technology 29 (6s), 500 - 507. http://sersc.org/journals/index.php/IJAST/article/view/8794.