Wibowo, Andreas, and Sudiro Roi Santoso. “Model Parametrik Batas Atas Dan Bawah Tarif Tol Di Indonesia Berdasarkan Stochastic Frontier Analysis”. Jurnal Teknik Sipil 29, no. 1 (May 17, 2022): 89-98. Accessed October 14, 2025. https://journals.itb.ac.id/index.php/jts/article/view/17750.