Widiyawati, S., Nazarudin and Ulyarti 2024. Study on Ratio of Jerbung Shrimp Waste Powder (Fenneropenaeus Merguiensis de Man) and Purple Yam Starch in the Production of Bioplastics: Yam starch bioplastics. Jurnal Bio-Geo Material Dan Energi. 4, 2 (Sep. 2024), 64-71. DOI:https://doi.org/10.22437/jbigme.v4i2.36918.