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