Suwal, Arjun, and Santosh Kumar Shrestha. “Causes of Delays of Motorable Bridge Construction Under Postal Highway Projects, Department of Roads”. Journal of Advanced College of Engineering and Management 2 (November 29, 2016): 85–92. Accessed May 20, 2024. https://nepjol.info/index.php/JACEM/article/view/16101.