Dung, N.T., Lan Anh, N.T., Oanh, D.T. and Dung, N.H. 2016. Development of spectrophotometric method for determination of mesalazine in pharmaceutical preparation. Vietnam Journal of Chemistry. 54, 4 (Aug. 2016), 509. DOI:https://doi.org/10.15625/0866-7144.2016-00356.