Bekti, Rokhana Dwi, Yudi Setyawan, and Enik Laksminiasih. 2021. “Spatial Area Model for Covid-19 in Java Based on R-Shiny Web Framework”. Jurnal Matematika, Statistika Dan Komputasi 17 (3):381-93. https://doi.org/10.20956/j.v17i3.11743.