Kerim Avaz Kuliev, Plotnikova Svetlana E, and Gorbunova Elena M. “Extractive Spectrophotometric Determination of Iron(III) Using 2, 6-Dithiol-4-Methylphenol and Aminophenols”. JOURNAL OF ADVANCED APPLIED SCIENTIFIC RESEARCH, vol. 1, no. 10, May 2017, doi:10.46947/joaasr110201781.