1. S-Methyl Dithizone and the Structure of Metal Dithizonates
2. F. J. Welcher , Organic Analytical Reagents, ed. V. Nostrand, 1949, vol. 3, p. 468
3. R. F. Milton and W. A.Waters, Methods of Quantitative Micro-Analysis, London: Arnold, 1948, p. 45
4. Dithizone as an analytical reagent
5. E. B. Sandell , Colorimetric Determination of Traces of Metals, Interscience Pub., New York, 1964, p. 139