Gaya APA

Iriawan3, G, Y, A, A, J. et al (1995). Essentials of Biochesmistry (2). : Litlle ,Brown Company.

Gaya MLA

Iriawan3, Goesti, Yudistira1,, Apen, Apgani2,, Jusron. et al. "Essentials of Biochesmistry". 2 : Litlle ,Brown Company, 1995. Text.