Cita APA (7th ed.)

SEKARAN UMA. (2008). RESEARCH METHODS FOR BUSINESS A SKILL BUILDING APPROACH (4TH.). JOHN WILEY AND SONS LTD.

Cita Chicago (17th ed.)

SEKARAN UMA. RESEARCH METHODS FOR BUSINESS A SKILL BUILDING APPROACH. 4TH. NEW DELHI: JOHN WILEY AND SONS LTD, 2008.

Cita MLA (9th ed.)

SEKARAN UMA. RESEARCH METHODS FOR BUSINESS A SKILL BUILDING APPROACH. 4TH. JOHN WILEY AND SONS LTD, 2008.