SetyawanNugroho Ari. “Crowd Violence Handling: Case Study Of Magelang City District Police”. Jurnal Litbang Polri 25, no. 1 (April 11, 2022): 48-60. Diakses Juli 5, 2024. https://jlp.puslitbang.polri.go.id/jlp/LitbangPOLRI/article/view/171.