A. A. Gde Kartika, I. B. Mochtar, and H. Widyastuti, “The Modelling of Volume and Percent Duration of Vehicle Parking for Shopping Stores in Surabaya, Indonesia”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 10, no. 5, pp. 2057–2067, Oct. 2020.