Gaya APA

Hardiyatmo, H, C. (2019). Mekanika Tanah 2 (Ed. 6). Yogyakarta: Gajah Mada University Press.

Gaya MLA

Hardiyatmo, Hary, Christady. "Mekanika Tanah 2". Ed. 6 Yogyakarta: Gajah Mada University Press, 2019. Text.