Submitted on: 14 October 2018.
Revised on: 06 January 2019.
Accepted on: 05 March 2019.
___________________International Journal of Applied Management Science
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Submitted on: 05 February 1998.
Revised on: 17 April 1998.
Accepted on: 05 June 1998.
___________________International Journal of Applied Management Science
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Submitted on: 01 September 2002.
Revised on: 09 December 2002.
Accepted on: 13 January 2003.
___________________International Journal of Applied Management Science
Submitted on: 09 September 2020.
Revised on: 18 December 2020.
Accepted on: 02 January 2021.
___________________International Journal of Applied Management Science