Gaya APA
(et.al), S., BOUGIE,Roger, . (2013).
Research Methods for Business; a skill,building approach-6th ed .
United Kingdom:
Wiley.
Gaya MLA
(et.al), SEKARAN,Uma., BOUGIE,Roger, .
"Research Methods for Business; a skill,building approach-6th ed".
United Kingdom:
Wiley,
2013.
Text.