H. Salam, A. Damayanti, T. L. Indra, and M. Dimyati, “Using Pixel-Based Image Classification to Identify City Structure Development in Balikpapan City, East Kalimantan”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 11, no. 3, pp. 1253–1259, Jun. 2021.