Gaya APA

al., E. et al (1995,2011,2010). Ekonomi Manajerial (Ed. 2,Ed. Revisi). Yogyakarta: BP STIE YKPN.

Gaya MLA

al., Et. et al. "Ekonomi Manajerial". Ed. 2,Ed. Revisi Yogyakarta: BP STIE YKPN, 1995,2011,2010. Text.