1. Veld types of South Africa;Acocks,1975
2. Evaporation Station: Erection of camp and tanks;Directorate of Hydrology,1974
3. Evaporation: Adjustment of metric scales — A-pan and S-tank;Directorate of Hydrology,1978
4. Measurement and Estimation of Evaporation and Evapotranspiration;Gangopadhyaya,1966