APA

(2012). Mastering research methods. Shah Alam: McGraw-Hill (Malaysia).

Chicago

2012. Mastering research methods. Shah Alam: McGraw-Hill (Malaysia).

Harvard

(2012). Mastering research methods. Shah Alam: McGraw-Hill (Malaysia).

MLA

Mastering research methods. Shah Alam: McGraw-Hill (Malaysia). 2012.