Gaya APA

Martin, L., David, S. (2005). Living Conditions In The Gunung Sewu Karst Region (Java,Indonesia) . Germany: Department Of Geography Justus Liebig University Of Giessen.

Gaya MLA

Martin, Lukas., David, Steinhilper. "Living Conditions In The Gunung Sewu Karst Region (Java,Indonesia)". Germany: Department Of Geography Justus Liebig University Of Giessen, 2005. Text.