Gaya APA

Santosa, A. (2009). World heritage nature & culture : Under the protection of UNESCO = Eropa Timur (7th vol). Jakarta: Batara Publishing.

Gaya MLA

Santosa, Agus. "World heritage nature & culture : Under the protection of UNESCO = Eropa Timur". 7th vol Jakarta: Batara Publishing, 2009. Encyclopaedia.