FITRIANI, Aulia. Making Purple Sweet Potato Tape Flour (Ipoema batatas var.Ayamurasaki): A Study Of FermentationTime and Yeast Concentration: Pembuatan Tepung Tape Ubi Jalar Ungu (Ipomoea batatas var. Ayamurasaki) : Kajian Lama Fermentasi dan Konsentrasi Ragi. Journal of Tropical Food and Agroindustrial Technology, [S. l.], v. 1, n. 02, p. 22–29, 2021. DOI: 10.21070/jtfat.v1i02.1555. Disponível em: https://jtfat.umsida.ac.id/index.php/jtfat/article/view/1555. Acesso em: 31 jul. 2025.