APA Style

al., E. et al (1986,2011,2003). Kimia Organik Jilid 1 (Ed. 2,Ed. 3,3rd Ed). Jakarta: Erlangga.

MLA Style

al., Et. et al. "Kimia Organik Jilid 1". Ed. 2,Ed. 3,3rd Ed Jakarta: Erlangga, 1986,2011,2003. Text.