P.Sakthi Priya, N., and K. Selva kumari. “An Enhanced Critical Path Method to Solve Time-Cost Trade- Off Using Type-2 Pentagonal Fuzzy Numbers”. International Journal of Engineering & Technology 7, no. 3.24 (August 10, 2018): 419–421. Accessed April 27, 2024. https://sciencepubco.com/index.php/ijet/article/view/22784.