Gaya APA

Hardiyatmo, H, C., , . (2012). Mekanika Tanah 1 . Yogyakarta: Yogyakarta: Gajah Mada University prees; 2012.

Gaya MLA

Hardiyatmo, Hary, Christady., , . "Mekanika Tanah 1". Yogyakarta: Yogyakarta: Gajah Mada University prees; 2012, 2012. Text.