R. T. Dewi, N. Aini, P. Haryanti, A. Khairunnisa, B. D. Probowati, and H. S. Arsyistawa, “Characteristics of high-protein corn yogurt with the addition of soy protein isolate and spirulina”, JITIPARI, vol. 11, no. 1, pp. 21–35, Jan. 2026.