Sin, P. Y., S. H. Tan, M. F. F. Asras, C. M. Lee, and T. C. Lee. “Probiotic Growth Pattern and Physicochemical Evaluation of Water Kefir Fermentation”. Malaysian Applied Biology, vol. 53, no. 2, June 2024, pp. 21-30, doi:10.55230/mabjournal.v53i2.2742.