Gaya APA

Poyk, Gerson.. (1978). Jerat . io: Nusa Indah.

Gaya Chicago

Poyk, Gerson.. Jerat. io: Nusa Indah, 1978. print.

Gaya MLA

Poyk, Gerson.. Jerat. io: Nusa Indah, 1978. print.

Gaya Turabian

Poyk, Gerson.. Jerat. io: Nusa Indah, 1978. print.