APA Style

Hardiyatmo, H, C. (2018). Mekanika Tanah 2 (Ed.6). Yogyakarta: Gadjah Mada University.

MLA Style

Hardiyatmo, Hary, Christady. "Mekanika Tanah 2". Ed.6 Yogyakarta: Gadjah Mada University, 2018. Text.