Anugerah, T., Siburian, J. P., Nisari, T., Yaqin, H., & Adiprayoga, S. N. (2025). A Study on the Livelihood Sources and Welfare Levels of Small-Scale Fishing Households in Tapanuli Tengah Regency, Sumatera Utara. nternational ournal of arine ngineering nnovation and esearch, 9(4), 659–666. https://doi.org/10.12962/j25481479.v9i4.4825