Jaya Kumar, C., L. Subramanyam Sarma, and A. Varada Reddy. 2010. “Extraction Spectrophotometric Determination of Micro Amounts of Palladium(II) With 2,4-Dihydroxy Acetophenonethiosemicarbazone ”. Asian Journal of Chemistry 9 (2):218-23. https://asianpubs.org/index.php/ajchem/article/view/23841.