Submitted on: 31 December 2019.
Revised on: 16 March 2020.
Accepted on: 09 April 2020.
___________________Journal of Computer Languages---ELSEVIER SCI LTD
Submitted on: 06 September 2006.
Revised on: 31 October 2006.
Accepted on: 02 December 2006.
___________________Journal of Computer Languages---ELSEVIER SCI LTD
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Submitted on: 16 June 2014.
Revised on: 16 August 2014.
Accepted on: 18 September 2014.
___________________Journal of Computer Languages---ELSEVIER SCI LTD
Submitted on: 15 August 2007.
Revised on: 29 October 2007.
Accepted on: 23 November 2007.
___________________Journal of Computer Languages---ELSEVIER SCI LTD
Submitted on: 08 September 2005.
Revised on: 07 November 2005.
Accepted on: 03 January 2006.
___________________Journal of Computer Languages---ELSEVIER SCI LTD