Mwangangi J.M., Muturi E.J., Shililu J.I., Muriu S., Jacob B., Kabiru E.W., Mbogo C.M., Githure J.I. and Novak R.J. (2007) Environmental covariates of Anopheles arabiensis in a rice agroecosystem in Mwea, Central Kenya. Journal of American Mosquito Control Association 4, 371–377