Lim, C. K., Ling, M. L., Leo, Y. S. and Seow, H. S. (1998) “Direct detection of <em>Salmonella typhi</em> in blood by polymerase chain reaction”, Medical Journal of Indonesia, 7(Supp1), pp. 59–64. doi: 10.13181/mji.v7iSupp1.1035.