APA (7th ed.) Citation

Lumbantobing, S. (2008). Gangguan Tidur. BP. FKUI.

Chicago Style (17th ed.) Citation

Lumbantobing, S.M. Gangguan Tidur. BP. FKUI, 2008.

MLA (9th ed.) Citation

Lumbantobing, S.M. Gangguan Tidur. BP. FKUI, 2008.

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