Shakir , K. and Mohammed , D. (2025) “Spectrophotometric Determination of Doxycycline Hydrochloride in its pure form and its pharmaceutical preparations using reagent 2,4,6 - tribromo-anline by the Azo coupling reaction”, Journal of Wahj Al-Ulom for Pure Sciences, 1(4). doi: 10.33899/jwups.v1i4.28985.