APA (7th ed.) Citation

Simanungkalit, I. (2007). Think, Tinka! Gagas Media.

Chicago Style (17th ed.) Citation

Simanungkalit, Ivana. Think, Tinka! Gagas Media, 2007.

MLA (8th ed.) Citation

Simanungkalit, Ivana. Think, Tinka! Gagas Media, 2007.

Warning: These citations may not always be 100% accurate.