1. Bunting, A. H., 1955. A classification of cultivated groundnuts. Emp. J. exp. Agric. 23: 158–170.
2. Bunting, A. H., 1958. A further note on the classification of cultivated groundnuts. Emp. J. exp. Agric. 26: 254–8.
3. Faris, D. G., 1965. The origin and evolution of the cultivated forms of Vigna sinensis. Can. J. Genet. Cytol. 7: 433–52.
4. Gregory, W. C., Smith, B. W. & Yarbrough, J. A., 1951. Morphology, genetics and breeding. Chapter III in: The Peanut—the unpredictable legume. Natn. Fertil. Ass. Washington D.C.
5. Higgins, B. B., 1951. Origin and early history of the peanut. Chapter II in: The Peanut—the unpredictable legume. Natn. Fertil. Ass. Washington D.C.