AHMED, MD. FAKRUDDIN ALI, and Y. LINGAPPA. “SPECTROPHOTOMETRIC DETERMINATION OF SELENIUM IN WATER, SOIL SAMPLES USING 2­ACETYL­5­CHLORO THIOPHENE, PHENYLENEDIAMINE”. International Journal of Chemistry Research 2, no. 3 (January 1, 2011): 46–48. Accessed December 10, 2025. https://www.ijcr.info/index.php/journal/article/view/46.