Submitted on: 27 September 2019.
Revised on: 19 October 2019.
Accepted on: 07 November 2019.
SCIENCEASIA
http://reply.papertrans.cn/3/277/27652/27652-12.png
http://reply.papertrans.cn/3/277/27652/27652-13.png
http://reply.papertrans.cn/3/277/27652/27652-14.png
Submitted on: 17 December 2001.
Revised on: 07 January 2002.
Accepted on: 22 January 2002.
SCIENCEASIA---SCIENCE SOCIETY THAILAND
Submitted on: 24 June 2016.
Revised on: 04 July 2016.
Accepted on: 19 July 2016.
SCIENCEASIA
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Submitted on: 01 September 2020.
Revised on: 16 September 2020.
Accepted on: 23 September 2020.
SCIENCEASIA---SCIENCE SOCIETY THAILAND
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Submitted on: 16 June 2002.
Revised on: 20 July 2002.
Accepted on: 29 July 2002.
SCIENCEASIA---SCIENCE SOCIETY THAILAND