1. D2607-69. Standard classification of peats, mosses, humus, and related products;American Society for Testing and Materials (ASTM),1969
2. The Ecology and Forest Types of the Peat Swamp Forests of Sarawak and Brunei in Relation to their Silviculture;Anderson,1961
3. The structure and development of the peat swamps of Sarawak and Brunei;Anderson;J. Trop. Geogr.,1964
4. The tropical swamps of western Malesia;Anderson,1983
5. Origin of mineral matter in peat;Andrejko,1983