Pontoh, Sophia Olga, Winsy Weku, and Djoni Hatidja. “Distribution of Spread and Characteristics of Confirmed Covid-19 Based on Spatial Autocorrelation in Manado”. Operations Research: International Conference Series 3, no. 1 (March 6, 2022): 32–40. Accessed January 14, 2026. https://www.iorajournal.org/index.php/Orics/article/view/128.