A. Al-Uzri, Wasan. “Spectrophotometric Determination of Procaine Hydrochloride in Pharmaceutical Preparations via Diazotization-Coupling Reaction With Phenol”. Asian Journal of Chemistry 27, no. 12 (September 1, 2015): 4449–4453. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/27_12_25.