Gaya APA

al., E. et al (1993,2001,2000,2002). Ekonomi Mikro (Ed. 2,Ed. 1). Yogyakarta: BPFE.

Gaya MLA

al., Et. et al. "Ekonomi Mikro". Ed. 2,Ed. 1 Yogyakarta: BPFE, 1993,2001,2000,2002. Text.