Isnaini, N. ., and A. F. H. . . Prajitno. “Time Cost Trade Off (TCTO) Analysis by Considering Overtime Working Hours, and Labor Factors on the Outer East Ring Road (OERR) Surabaya Project (STA 0+000 – STA 5+875)”. Jurnal Transportasi: Sistem, Material, Dan Infrastruktur, vol. 5, no. 2, July 2023, pp. A254 - A260, https://journal.its.ac.id/index.php/transportasi/article/view/731.