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Submitted on: 10 January 2005.
Revised on: 15 February 2005.
Accepted on: 28 February 2005.
Kuwait Journal of Science
Submitted on: 29 April 2013.
Revised on: 26 May 2013.
Accepted on: 02 June 2013.
Kuwait Journal of Science---ELSEVIER
Submitted on: 18 May 2011.
Revised on: 19 June 2011.
Accepted on: 08 July 2011.
Kuwait Journal of Science---ELSEVIER
Submitted on: 19 June 2018.
Revised on: 31 July 2018.
Accepted on: 24 August 2018.
Kuwait Journal of Science
Submitted on: 10 February 1999.
Revised on: 19 February 1999.
Accepted on: 14 March 1999.
Kuwait Journal of Science---ELSEVIER
Submitted on: 19 October 2017.
Revised on: 14 November 2017.
Accepted on: 04 December 2017.
Kuwait Journal of Science
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Submitted on: 25 April 2020.
Revised on: 12 May 2020.
Accepted on: 03 June 2020.
Kuwait Journal of Science---ELSEVIER
Submitted on: 21 November 2018.
Revised on: 02 January 2019.
Accepted on: 22 January 2019.
Kuwait Journal of Science