yunanto, agung, Emirhadi Suganda, Tri Edhi Budhi Soesilo, and Aryo Hanggono. 2014. “Modeling Abundance and Control of Litter on Kuta Beach, Bali, Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 15 (1): 708-29. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/2226.