SANJAYA, Herlan. SISTEM PERINGATAN DINI ANTISIPASI KEJAHATAN DENGAN POLA GERAKAN TANGAN. Patria Artha Technological Journal, [S. l.], v. 3, n. 1, p. 17–22, 2019. DOI: 10.33857/patj.v3i1.202. Disponível em: https://ejournal.patria-artha.ac.id/index.php/patj/article/view/202. Acesso em: 21 sep. 2026.