Alsaed, A. K.; Ahmad, R.; Aldoomy, H.; El-Qader, S. A.; Saleh, D.; Sakejha, H.; Mustafa, L. Characterization, Concentration and Utilization of Sweet and Acid Whey. Pak. J. Nutr. 2013, 12 (2), 172–177. https://doi.org/10.3923/pjn.2013.172.177.