Sandhyavitri, Ari, and Niko Saputra. “Analisis Risiko Jalan Tol Tahap Pra Konstruksi (Studi Kasus Jalan Tol Pekan Baru-Dumai)”. Jurnal Teknik Sipil 9, no. 1 (March 27, 2019): 1–19. Accessed January 18, 2025. http://224305.koshikahk.tech/index.php/jts/article/view/1366.