1. F. Habashi,Miner. Sci. Eng.,3 (1971) 3.
2. L. S. Renzoni, R. C. McQuire and M. V. Barker,J. Metals 10 (1958) 414.
3. R. M. Garrels and L. Christ, ?Solutions, Minerals and Equilibria?, Harper and Row, New York (1965).
4. E. Peters and H. Majima, ?The physical chemistry of leaching of sulphide minerals?, paper presented at 97th Annual Meeting AIME, New York (1968).
5. H. Majima and E. Peters, ?Electrochemical mechanisms for the decomposition of metal sulphides?, unpublished report.