H. Othman, N., نبيل, S. Othman, N. and نبيل 2025. Spectrophotometric Determination of Teicoplanin via Coupling with Diazotized p-Nitroaniline. Rafidain Journal of Science. 24, 9 (Jun. 2025), 42–51. DOI:https://doi.org/10.33899/rjs.2013.78758.