Gaya APA

Harahap, Abidan. Dkk. (). Nowadays! . : .

Gaya Chicago

Harahap, Abidan. Dkk. Nowadays!. : , . Text.

Gaya MLA

Harahap, Abidan. Dkk. Nowadays!. : , . Text.

Gaya Turabian

Harahap, Abidan. Dkk. Nowadays!. : , . Print.