Redi, M., and H. . Maryani. “IMPLEMENTATION OF SECURITY FOR NATIONAL VITAL OBJECTS OF PT. PERTAMINA (PERSERO) REGION I - MEDAN, NORTH SUMATRA BY THE DIRECTORATE OF SAMAPTA, NORTH SUMATRA REGIONAL POLICE”. Jurnal Meta Hukum, vol. 4, no. 2, Apr. 2025, pp. 238-47, doi:10.47652/metahukum.v4i2.760.