Gaya APA

Hardiyatmo, H, C. (2017). Mekanika Tanah 1 (tujuh). Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Hardiyatmo, Hary, Christady. "Mekanika Tanah 1". tujuh Yogyakarta: Gadjah Mada University Press, 2017. Text.