Coba jelasin Lihat pula dari Tanah dong

Soil-Net.com A free schools-age educational site teaching about soil and its importance.

Adams, J.A. 1986. Dirt. College Station, Texas: Texas A&M University Press ISBN 0-89096-301-0

Certini, G., Scalenghe, R., 2006. Soils: Basic concepts and future challenges. Cambridge Univ Press, Cambridge UK.

David R. Montgomery, Dirt: The Erosion of Civilizations, ISBN 978-0-520-25806-8

Faulkner, Edward H. Plowman's Folly. New York, Grosset & Dunlap. 1943. ISBN 0-933280-51-3

LandIS Free Soilscapes Viewer Free interactive viewer for the Soils of England and Wales

Geo-technological Research Paper, IIT Kanpur, Dr P P Vitkar - Strip footing on weak clay stabilized with a granular pile National Research Council Canada: From Discovery to Innovation / Conseil national de recherches Canada: de la découverte à l'innovation ,

Jenny, Hans, Factors of Soil Formation: A System of Quantitative Pedology 1941 http://www.soilandhealth.org/01aglibrary/010159.Jenny.pdf

Logan, W. B., Dirt: The ecstatic skin of the earth. 1995 ISBN 1-57322-004-3

Mann, Charles C.: " Our good earth" National Geographic Magazine September 2008