Gaya APA

Hardiyatmo, H, C., Press, T, U. (2018). mekanika tanah 2 (Ed.6;cet.1). Yogyakarta: Gadjah Mada Universty Pess.

Gaya MLA

Hardiyatmo, Hary, Christady., Press, TIM, UGM. "mekanika tanah 2". Ed.6;cet.1 Yogyakarta: Gadjah Mada Universty Pess, 2018. Text.