M. R. Arif Alya Lukman and E. Kurniawati, “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”, jofe, vol. 4, no. 2, pp. 67–77, Apr. 2025.