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Submitted on: 16 August 2016.
Revised on: 08 September 2016.
Accepted on: 23 September 2016.
NULL
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Submitted on: 12 November 2000.
Revised on: 19 December 2000.
Accepted on: 25 December 2000.
National Accounting Review---AMER INST MATHEMATICAL SCIENCES-AIMS