Winanri, R. P., B. Susanti, and I. Juliantina. “Comparison Analysis Between Traditional and Long Segment Contracts on National Road Preservation Activities in Indonesia”. Engineering, Technology & Applied Science Research 9, no. 3 (June 8, 2019): 4230–4234. Accessed August 15, 2022. https://www.etasr.com/index.php/ETASR/article/view/2720.