↑ Tony Waters. The Persistence of Subsistence Agriculture: life beneath the level of the marketplace. Lanham, MD: Lexington Books. 2007.
↑ Marvin P Miracle,"Subsistence Agriculture: Analytical Problems and Alternative Concepts", American Journal of Agricultural Economics, May 1968, pp. 292-310.
↑ “Agriculture Ecosystems & Environment (AGR ECOSYST ENVIRON)”. Soil erosion from shifting cultivation and other smallholder land use in Sarawak, Malaysia. 4.42.
