1. A study of the environment and characteristics of tropical podzols in Sarawak (East Malaysia);Andriesse;Geoderma,1969
2. Rainfall Statistics of the British Borneo Territories (period 1896–1957);Department of Civil Aviation,1961
3. Quick method for a short total chemical analysis of soils;Dobritskaya;Soviet Soil Sci.,1962
4. Soil Chemical Analysis;Jackson,1958
5. Sedimentary Petrography;Milner,1962