Booker tropical soil manual : a handbook for soil survey and agricultural land evaluation in the tropics and subtropics
edited by J.R. Landon
Longman Scientific & Technical, 1984
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Sodhi, Navjot S.
Tropical conservation biology
Blackwell , 2007
 Buku Teks SO
Soil biology & biochemistry
Pergamon Press, 2018
 Majalah, Jurnal, Buletin
Eddleston, Michael
Oxford handbook of tropical medicine
New York Oxford Univ. Press 2002,
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Eddelson, Michael
Oxford handbook of tropical medicine
Oxford University Press, 1999
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