Gaya APA

6279. (1). : ESIS.

Gaya Chicago

6279. Next Step Series : IPA Aktif. : ESIS, 1. 12/C/IPA/081.

Gaya MLA

6279. Next Step Series : IPA Aktif. : ESIS, 1. 12/C/IPA/081.

Gaya Turabian

6279. : ESIS, 1. 12/C/IPA/081.