“ANALISA OPTIMASI BIAYA DAN WAKTU METODE TCTO (TIME COST TRADE OFF) (STUDY KASUS: PRESERVASI JALAN RUAS SP. GUNUNG KEMALA – SANGGI)”, teras, vol. 11, no. 2, pp. 16–23, Jun. 2021, Accessed: Nov. 26, 2025. [Online]. Available: https://ojs.unsiq.ac.id/index.php/teras/article/view/2537