J. Bull, Sex Determination in Reptiles, The Quarterly Review of Biology, vol.55, issue.1, pp.3-21, 1980.
DOI : 10.1086/411613

C. Chang, Hormonal influences on sex differentiation in the toad, 1955.

C. Chang and . Witschi, Breeding of Sex-reversed Males of Xenopus laevis Daudin., Experimental Biology and Medicine, vol.89, issue.1, 1955.
DOI : 10.3181/00379727-89-21742