Submitted on: 04 December 1999.
Revised on: 12 December 1999.
Accepted on: 08 January 2000.
Malaysian Journal of Soil Science
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Submitted on: 20 December 2006.
Revised on: 22 January 2007.
Accepted on: 02 February 2007.
Malaysian Journal of Soil Science
Submitted on: 24 April 2001.
Revised on: 06 June 2001.
Accepted on: 19 June 2001.
Malaysian Journal of Soil Science
http://reply.papertrans.cn/3/212/21173/21173-35.png
Submitted on: 19 July 2012.
Revised on: 30 August 2012.
Accepted on: 16 September 2012.
Malaysian Journal of Soil Science