Submitted on: 14 January 2017.
Revised on: 15 April 2017.
Accepted on: 06 May 2017.
___________________Defence Technology---KEAI PUBLISHING LTD
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Submitted on: 29 January 2021.
Revised on: 06 April 2021.
Accepted on: 12 May 2021.
___________________Defence Technology---KEAI PUBLISHING LTD
Submitted on: 07 August 1999.
Revised on: 13 September 1999.
Accepted on: 07 November 1999.
___________________Defence Technology---KEAI PUBLISHING LTD
Submitted on: 25 April 2001.
Revised on: 01 July 2001.
Accepted on: 06 August 2001.
___________________Defence Technology---KEAI PUBLISHING LTD
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Submitted on: 08 November 2000.
Revised on: 08 February 2001.
Accepted on: 09 March 2001.
___________________Defence Technology---KEAI PUBLISHING LTD
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