Lim, C. K., M. L. Ling, Y. S. Leo, and H. S. Seow. 1998. “Direct Detection of <em>Salmonella typhi</em> In Blood by Polymerase Chain Reaction”. Medical Journal of Indonesia 7 (Supp1):59-64. https://doi.org/10.13181/mji.v7iSupp1.1035.