Sari, V.W. 2020. The Process of Determining Import Duty and PDRI on Passenger Carry-Ons at Kuala Namu International Airport: The Process of Determining Import Duty and PDRI on Passenger Carry-Ons at Kuala Namu International Airport. Jurnal Mantik. 3, 4 (Feb. 2020), 634-641. DOI:https://doi.org/10.35335/mantik.Vol3.2020.883.pp634-641.