Yuliani, N., RTM Sutamiharja, and A. Prihantara. “Utilization of Residual Carrageenan Extract from Eucheuma Cottonii Seaweed Into Bioethanol”. Indonesian Journal of Applied Research (IJAR), Vol. 1, no. 1, June 2020, pp. 25-31, doi:10.30997/ijar.v1i1.32.