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Submitted on: 22 September 2001.
Revised on: 01 October 2001.
Accepted on: 08 October 2001.
Maejo International Journal of Science and Technology
Submitted on: 29 June 2022.
Revised on: 28 July 2022.
Accepted on: 09 August 2022.
Maejo International Journal of Science and Technology
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Submitted on: 21 March 2002.
Revised on: 30 April 2002.
Accepted on: 16 May 2002.
Maejo International Journal of Science and Technology
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Submitted on: 11 September 2008.
Revised on: 26 September 2008.
Accepted on: 02 October 2008.
Maejo International Journal of Science and Technology
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