Firmansyah, Adi, Lala Mulyowibowo Kolopaking, and Manuntun Parulian Hutagaol. 2020. “Strengthening Strategy of Land Cultivator Cooperative for Community Empowerment and Management of Sustainable Coastal”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 49 (1):206-14. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10737.