M. Ali, I.S. (2014) “Experimental Study on the Removal Process of Cobalt from Fly Ash using Different Solvents”, Nahrain University College of Engineering Journal, 17(2), pp. 197–202. Available at: https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/222 (Accessed: 23 December 2024).