Ratnaningsih, Tri, et al. “Polyphenols Extracted from the Green Tea (<em>Camellia sinensis< em>) Augments the Protective Immune Responses in Mice Challanged With <em>Salmonella typhimurium< Em>”;. Medical Journal of Indonesia, vol. 13, no. 1, Feb. 2004, pp. 1-7, doi:10.13181/mji.v13i1.122.