Gaya APA

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

Gaya MLA

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