Nguluu, S. N., J. K. Itabari, B. M. Ikombo, J. M. Wambua, and E. M. Gichangi. “SESSION III – IRRIGATION, DRAINAGE AND WATER HARVESTING - Water Application Methods and Water Use Efficiency for Tomatoes Production in the Semi-Arid Areas of Eastern Kenya”. East African Agricultural and Forestry Journal, vol. 65, no. 1, Jan. 2004, pp. 51-56, doi:10.4314/eaafj.v65i1.1756.