Gaya APA

Azar, B, S. et al (2001,1996,1995,1997,2000,1981,1985,2004). Matematika Ekonomi (Ed. 1,Ed. 2). Jakarta: Salemba Empat, 2001.

Gaya MLA

Azar, Betty, Schrampfer. et al. "Matematika Ekonomi". Ed. 1,Ed. 2 Jakarta: Salemba Empat, 2001, 2001,1996,1995,1997,2000,1981,1985,2004. Text.