Parikh, K.S., R.M. Patel, and K.N. Patel. “2-Hydroxy-4-N-Butoxy-5-Bromo Propiophenone Thiosemicarbazone As Spectrophotometric Reagent for Iron”. Asian Journal of Chemistry 22, no. 4 (March 30, 2010): 2805–2810. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/11480.