APA (7th ed.) Citation

Opick. (2010). Di Bawah Langit. Grafindo Khazanah Ilmu.

Chicago Style (17th ed.) Citation

Opick. Di Bawah Langit. Grafindo Khazanah Ilmu, 2010.

MLA (8th ed.) Citation

Opick. Di Bawah Langit. Grafindo Khazanah Ilmu, 2010.

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