Rusdianto, A. S., A. E. Wiyono, and D. E. D. Permatasari. “Characterization of the Bioplastic Cups from Cassava Starch (Manihot Esculenta Crantz) With the Addition of Coconut Fiber Powder”. Gontor Agrotech Science Journal, vol. 7, no. 1, May 2021, pp. 91-107, doi:10.21111/agrotech.v7i1.5755.