SEKARAN, U. (2010). Research methods for business: A skill-building approach 5th edition. John Wiley.
Lua i Stíl Chicago (17ú heag.)SEKARAN, Uma. Research Methods for Business: A Skill-building Approach 5th Edition. John Wiley, 2010.
Lua MLA (8ú heag.)SEKARAN, Uma. Research Methods for Business: A Skill-building Approach 5th Edition. John Wiley, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.