1. P. A. Wright:Extractive Metallurgy of Tin, Elsevier, Amsterdam, 1966.
2. C. Decroly and M. Ghodsi:Proc. Int. Congr. of Chemical Industry, 1967, pp. 192–98.
3. C. Decroly, M. Ghodsi, and R. Winard:Trans. Inst. Min. Metall., Sec. C, 1967, vol. 76, pp. C259–67.
4. S.R. Chandrashekar: Ph.D. Thesis, Imperial College, London, 1978.
5. T. DebRoy, S. R. Chandrashekar, and D. G. C. Robertson:Trans. Inst. Min. Metall., Sec. C, 1978, vol. 87, pp. C225–30.