APA (7th ed.) Citation

Sukmana. (2001). Asal-Usul Danau Toba. CV Putra Setia.

Chicago Style (17th ed.) Citation

Sukmana. Asal-Usul Danau Toba. CV Putra Setia, 2001.

MLA (8th ed.) Citation

Sukmana. Asal-Usul Danau Toba. CV Putra Setia, 2001.

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