Alfarizi, M.A. and Syahada, R.N. 2019. Optimization Of Employee Civil Servants Investigations In Handling Case Of Immigrated Criminal Acts: OPTIMALISASI KINERJA PENYIDIK PEGAWAI NEGERI SIPIL KEIMIGRASIAN DALAM MENANGANI KASUS TINDAK PIDANA KEIMIGRASIAN. Journal of Law and Border Protection. 1, 1 (May 2019), 113–127. DOI:https://doi.org/10.52617/jlbp.v1i1.161.