Febrian M. The Efforts of the Samapta Patrol Unit in Preventing the Crime of Theft with Ballast at Alfamart in the Jurisdiction of the Kendal Police Station. PSR [Internet]. 2024Oct.19 [cited 2024Nov.23];7(8). Available from: http://journal.akpol.ac.id/index.php/psr/article/view/1069