Gaya APA
Doman, D. (1997).
Lookbefore you leap: market research made easy lakukan sendiri riset pasar anda (6).
Jakarta:
Pustaka Binaman Pressindo.
Gaya MLA
Doman, Don.
"Lookbefore you leap: market research made easy lakukan sendiri riset pasar anda".
6
Jakarta:
Pustaka Binaman Pressindo,
1997.
Text.