Gaya APA

ENGLISH ON SKY JILID 1. (2006). : .

Gaya Chicago

ENGLISH ON SKY JILID 1. . : , 2006. Text.

Gaya MLA

ENGLISH ON SKY JILID 1. . : , 2006. Text.

Gaya Turabian

ENGLISH ON SKY JILID 1. : , 2006. Print.