APA
(2003). Reaseach Methods in Applied Economics and Other Social Sciences. Seri Begawan: Brune Darussalam.
Chicago
2003. Reaseach Methods in Applied Economics and Other Social Sciences. Seri Begawan: Brune Darussalam.
Harvard
(2003). Reaseach Methods in Applied Economics and Other Social Sciences. Seri Begawan: Brune Darussalam.
MLA
Reaseach Methods in Applied Economics and Other Social Sciences. Seri Begawan: Brune Darussalam. 2003.