K. and M. Correa, The political economy of health in Africa, 1996.

K. Government, Bungoma District Development Plan 1994-1996, 1996.

H. Rinehart, W. Kimani, and V. N. , Foundations of behavioural research, 1988.

C. Sindiga, M. Nyaigoti-chacha, and . Kanunah, Traditional medicine in Africa