Albino, R.C. and Thompson, V.J. (1956). The effect of sudden weaning on Zulu children . Brit. J. Med. Psychol,29, 177-210.
2.
Barnes, R.H., Cunnold, S.R., Zimmerman, R.R., Simmons, H., MacLeod, R.B., and Krook, L. (1966). Influence of Nutritional Deprivations in Early Life on Learning Behaviour of Rats as Measured by Performance in a Water Maze. J. Nutrition, 89, 399-410.
3.
Bryant, A.T. (1949). The Zulu People Vols, 1 and 2. Pietermaritzburg, S.Afr., Natal Witness.
4.
Cowley, J.J. and Griesel, R.D. (1959). Some effects of a low protein diet on a first filial generation of white rats. J. Genet. Psychol ., 95, 187-201.
5.
Cowley, J.J. and Griesel, R.D. (1962). Pre- and post-natal effects of a low protein diet on the behaviour of the white rat. Psychologia Africana , 9, 216-225.
6.
Cowley, J.J. and Griesel, R.D. (1963). The development of second generation low protein rats. J. Genet. Psychol., 103,233-242.
7.
Cowley, J.J. and Griesel, R.D. (1966). The effect on growth and behaviour of rehabilitating first and second generation low protein rats. Anim. Behav.,14, 506-517.
8.
Griffiths, J. (1960). The first year of life of the Johannesburg Bantu ((1). S.Afr. Med. J., 34, 1011-1014.
9.
Krige, E.J. (1950). The Social System of the Zulus. London, Longmans Green & Co.
10.
Lister, D. and McCance, R.A. (1965). The effect of two diets on the growth, reproduction and ultimate size of guinea-pigs. Brit. J. Nutr. , 19, 311-319.
11.
Trant Hope (1954). Food taboos in East Africa. Lancet, ii, 703-705.
