Usman, D., Rosana, Y. and Yasmon, A. 2026. Optimization of Duplex Real-time PCR to Detect Corynebacterium ulcerans and C. pseudotuberculosis from Patients with Suspected Diphtheria in Jakarta. Biomedical Journal of Indonesia. 12, 2 (May 2026), 130–135. DOI:https://doi.org/10.32539/bji.v12i2.319.