Steven, Raymond, Allya Bertha Nofriani, Samuel Malik, and Dyah Lestari Widaningrum. 2021. “GIS Approach for Spatial Data Visualization of Food Service Operator in Jakarta, Indonesia”. SEEIJ (Social Economics and Ecology International Journal) 2 (2). https://doi.org/10.21512/seeij.v2i2.5656.