Perbedaan tingkat keseriusan kejahatan antara warga Cluster Gracia Residence Bintaro dan Warga Kelurahan Johar Baru Jakarta Pusat = Difference in the seriousness of crime levels between residents of the Gracia Residence Bintaro Cluster and Residents of Johar Baru Village Central Jakarta / Gracia Kartika Dian Chi Vita - Gracia Kartika Dian Chi Vita, author (2019)