1. Bertram, E., 2001. Department of Water Affairs and Forestry, South Africa. Unpublished data
2. Cotzee, 2001. Personal communication
3. Department of Water Affairs and Forestry, 1990. Unpublished report
4. Dziembowski, Z.M., 1976. The geohydrology of the Dendron Area, Pietersburg District. A report for the Department of Mines
5. Jolly, J.L., 1986. Borehole/Irrigation survey and groundwater evaluation of the Doringlaagte drainage basin. Technical Report No. GH3495. Department of Water Affairs