Karjono, K., E. D. Kusumawati, and R. Rahmadhani. “Maritime Policy: Marine Toll to Ensure Availability Of Coconut Trunk Supply Chain On Morotai Island”. Maritime Park: Journal of Maritime Technology and Society, vol. 1, no. 2, June 2022, pp. 59-63, doi:10.62012/mp.v1i2.21954.