1. Adams, C. W. M. (1957). J. din. Path., 10, 56.
2. Histochemistry: Theory, Practice, and Bibliography;Barka, T.; Anderson, P.J.;J. nat. Cancer Inst,1963
3. Bums, J., Pennock, C. A., and Stoward, P. J. (1967). J. Path. Bact., 94, 337.
4. Cohen, A. S. (1965). Int. Rev. exp. Path., 4, 159.
5. Spot Tests in Organic Analysis;Feigl, F.,1966