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Submitted on: 26 November 2023.
Revised on: 08 March 2024.
Accepted on: 02 May 2024.
___________________Information Technology for Development
Submitted on: 14 May 2015.
Revised on: 09 June 2015.
Accepted on: 13 July 2015.
___________________Information Technology for Development
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Submitted on: 07 August 2009.
Revised on: 27 September 2009.
Accepted on: 29 October 2009.
___________________Information Technology for Development
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http://reply.papertrans.cn/2/126/12597/12597-17.png
Submitted on: 27 June 2016.
Revised on: 14 October 2016.
Accepted on: 06 December 2016.
___________________Information Technology for Development
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