Elsheikh, R. (2015) “CLOUD POINT EXTRACTION, PRECONCENRATION AND SPECTROPHOTOMETRIC DETERMINATION OF COBALT IN WATER SAMPLES”, International Journal of Pharmacy and Pharmaceutical Sciences, 7(9), pp. 213–221. Available at: https://www.journals.innovareacademics.in/index.php/ijpps/article/view/7235 (Accessed: 6 December 2025).