Harahap, Husnul Yaqin, Toga Mahaji, Juliana Pebrina Siburian, Tirta Anugerah, and Shofian Nanda Adiprayoga. 2025. “Coastal Community Perceptions of Waste Management As an Effort to Maintain Marine Sustainability in Tapanuli Tengah Regency, North Sumatera”. International Journal of Marine Engineering Innovation and Research 9 (4):825-33. https://doi.org/10.12962/j25481479.v9i4.4845.