Gaya APA

KESHAV, S., BALLEY, A. (2013). The gastrointestinal system at a glance (2nd ed.). West Sussex: Wiley-Blackell.

Gaya MLA

KESHAV, Satish., BALLEY, Adam. "The gastrointestinal system at a glance". 2nd ed. West Sussex: Wiley-Blackell, 2013. Buku.