Gunawan, A. P., A. Djuminar, E. Ernawati, and L. Chaidir. “Development of Oxgall Preparation As Clinical Sample for Detection of Salmonella Typhi With Real-Time PCR Method”. Jurnal Teknologi Laboratorium, vol. 7, no. 2, Dec. 2018, pp. 70-77, doi:10.29238/teknolabjournal.v7i2.127.