Gaya APA

Beins, B, C. (2012). Apa Style Simplified Writing In Psychology, Education, Nursing, and Sociology (Ed. 1). : Wiley Blakwell.

Gaya MLA

Beins, Bernard, C.. "Apa Style Simplified Writing In Psychology, Education, Nursing, and Sociology". Ed. 1 : Wiley Blakwell, 2012. Buku PPS Pend. Biologi.