Analisis Fisik, Mikroba, pH, dan Sensorik Es Krim Fungsional Probiotik dengan Kombinasi Ubi Jalar Ungu: Physical, Microbial, pH, and Sensory Analysis of Functional Probiotic Ice Cream with Purple Sweet Potato Combination. Journal of Food Engineering, v. 4, n. 2, p. 67–77, 29 Apr.2025.