Soejanto, Irwan, Soejanto Soejanto, and Yuli Dwi Astanti. “Monte Carlo Simulation of on-Street Parking Retribution Revenue Potential in Sleman Regency Indonesia”. International Journal of Engineering and Technology 7, no. 3.30 (August 24, 2018): 357–360. Accessed February 9, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/18333.