Lee, M. C., A. Handayani, and S. H. Po. “Combined Ultrasonic and Thermal Treatment: Effects on Microbial Reduction and Protein Stability in Fresh Milk”. Schrödinger: Journal of Physics Education, Vol. 7, no. 2, Apr. 2026, pp. 95-104, doi:10.37251/sjpe.v7i2.3082.