Prof. Dr. Rabindra Nath Shrestha, Dr. Tarumay Ghoshal, Er. Khem Raj Joshi, Dr. Anjay Kumar Mishra. “Operation of Time and Cost Estimation of Road and Bridge Projects ”. Design Engineering (July 23, 2021): 4684-4703. Accessed May 5, 2024. http://thedesignengineering.com/index.php/DE/article/view/2910.