Rusiana, Ulfa. “Upaya Satuan Sabhara Dalam Mencegah Aksi Premanisme Di Wilayah Hukum Polresta Surakarta”. Indonesian Journal of Police Studies 7, no. 10 (February 28, 2017): 617-654. Accessed November 24, 2024. http://journal.akpol.ac.id/index.php/ijps/article/view/46.