Gaya APA

9969. (1). : Mizan Media Utama.

Gaya Chicago

9969. Keep SMILE For The WORLD. : Mizan Media Utama, 1. .

Gaya MLA

9969. Keep SMILE For The WORLD. : Mizan Media Utama, 1. .

Gaya Turabian

9969. : Mizan Media Utama, 1. .