Rusiana, U. (2017). Upaya Satuan Sabhara dalam Mencegah Aksi Premanisme di Wilayah Hukum Polresta Surakarta. Indonesian Journal of Police Studies, 1(2), 617-654. Retrieved from http://111.68.112.228:443/10.23.97.227/index.php/ijps/article/view/46