“Spectrophotometric Determination of Thymol in Pharmaceutical Preparations Via Oxidative Coupling Reaction With 2,4- Dinitrophenylhydrazine in the Presence of Potassium Periodate”. 2023. Iraqi Journal of Science 55 (1): 27-34. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11921.