Jeny Mary Koshy. (2007). A study on market penetration of value added serviced world calling card of Health. School of Management Studies.
Chicago-tyylinen lähdeviittausJeny Mary Koshy. A Study on Market Penetration of Value Added Serviced World Calling Card of Health. Kochi: School of Management Studies, 2007.
MLA-viiteJeny Mary Koshy. A Study on Market Penetration of Value Added Serviced World Calling Card of Health. School of Management Studies, 2007.
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