Muliawan, S.Y., Sudarmono, P. and Moehario, L. 1998. Enzyme linked immunoassay for early diagnosis of Typhoid fever using <em>Salmonella typhi</em&gt; outer membrane protein. Medical Journal of Indonesia. 7, Supp1 (Oct. 1998), 211-3. DOI:https://doi.org/10.13181/mji.v7iSupp1.1113.