[1]
A. S. Ahmed, M. B. Bhatty, M. T. Saeed, and S. K. Afridi, “Effect of Excess Metal Concentration on the Extraction Potential of Di-(2-Ethylhexyl) Phosphoric Acid: dissociation constant, di-(2-ethylhexyl) phosphoric acid, copper extraction”, Pakistan Journal of Scientific & Industrial Research, vol. 49, no. 2, pp. 309–313, Jun. 2006.