1. Foods commonly used by the Xhosa-speaking people of Transkei and Ciskei: weights for various household measures;Beyers;J. Diet. Home Econ.,1979
2. Alcohol and cancer;Boffetta;Lancet Oncol.,2006
3. Bolger, M., Coker, R.D., DiNovi, M., Gaylor, D., Gelderblom, W., Olsen, M., Paster, N., Riley, R.T., Shephard, G., Speijers, G.J.A. 2001. Fumonisins. In: Prepared by the Fifty-sixth Meeting of the Joint FAO/WHO Expert Committee on Food Additives (JECFA), Safety evaluation of certain mycotoxins in food. WHO Food Additives Series No. 47, FAO Food and Nutrition Paper No 74, WHO, Geneva, Switzerland, pp. 103–279.
4. The impact of urbanisation on the health of black pre-school children in the Umtata district, Transkei, 1990;Byarugaba;S. Afr. Med. J.,1991
5. The rise of supermarkets and changing expenditure patterns of poor rural households case study in the Transkei area, South Africa;D’Haese;Food Pol.,2005