World Reference Base for Soil Resources: Perbedaan antara revisi
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== Pranala luar ==
* [http://
* IUSS Working Group WRB: World Reference Base for Soil Resources 2014, Update 2015. World Soil Resources Reports 106, FAO, Rome 2015. ISBN 978-92-5-108369-7. ([http://www.fao.org/3/i3794en/I3794en.pdf PDF] 2,3 MB).
* W.E.H. Blum, P. Schad, S. Nortcliff: Essentials of Soil Science. Soil formation, functions, use and classification (World Reference Base, WRB). Borntraeger Science Publishers, Stuttgart 2018. ISBN 978-3-443-01090-4.
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