APA (7th ed.) Citation

Jeffery J. (2013). Danau Toba. Good Tree Publication.

Chicago Style (17th ed.) Citation

Jeffery J. Danau Toba. Kuala Lumpur: Good Tree Publication, 2013.

MLA (9th ed.) Citation

Jeffery J. Danau Toba. Good Tree Publication, 2013.

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