SEKARAN, U. (2013). Research Methods for Business a skil-building approach. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)SEKARAN, Uma. Research Methods for Business a Skil-building Approach. John Wiley & Sons, 2013.
Lua MLA (8ú heag.)SEKARAN, Uma. Research Methods for Business a Skil-building Approach. John Wiley & Sons, 2013.
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