Efektivitas kerjasama antara Kepolisian Negara Republik Indonesia (POLRI) dengan Polis Diraja Malaysia (PDRM) dalam rangka MOU on combating illicit trafficking in narcotic drugs, psychotropic substances, precursors, hazardous materials and environment of police coperation = The effectiveness of cooperation between Kepolisian Negara Indonesia (POLRI) and Polis Diraja Malysia (PDRM) to combating illicit trafficking in narcotic drugs, psychotropic substances, precursors, hazardous materials and environment of police coperation