Gaya APA

Bersyukurlah Grumpy. (). : Pena Aksara.

Gaya Chicago

Bersyukurlah Grumpy. . : Pena Aksara, . .

Gaya MLA

Bersyukurlah Grumpy. . : Pena Aksara, . .

Gaya Turabian

Bersyukurlah Grumpy. : Pena Aksara, . .