APA Style

Hardiyatmo, H, C. (2012). Mekanika Tanah 1 (Ed. 6). Yogyakarta: Gadjah Mada University Press.

MLA Style

Hardiyatmo, Hary, Christady. "Mekanika Tanah 1". Ed. 6 Yogyakarta: Gadjah Mada University Press, 2012. Text.