Jubelito Simanungkalit, F. and Hotman Manurung 2024. Analysis Of Total Dissolved Solids, Color And Specific Volume Of Biscuits With Banana Flour (Musa Acuminata Colla) Substitution And Purple Sweet Potato Puree (Ipomoea Batatas L.) Addition. Jurnal Scientia. 13, 03 (Aug. 2024), 959-973. DOI:https://doi.org/10.58471/scientia.v13i03.2578.