“The Effect of Age Of Cassava Tapai (Manihot Esculenta) and Concentration on The Characteristics of Cassava Tapai Flour : Pengaruh Umur Tape Singkong (Manihot Esculenta) Dan Konsentrasi Ragi Terhadap Karakteristik Tepung Tape Singkong ”. 2021. Journal of Tropical Food and Agroindustrial Technology 1 (02): 30-37. https://doi.org/10.21070/jtfat.v1i02.1571.