HARDIYATMO, H. C. (2002). Mekanika tanah jilid 1.-- ed.3. Gadjah Mada University Press.
Lua i Stíl Chicago (17ú heag.)HARDIYATMO, Hary Christady. Mekanika Tanah Jilid 1.-- Ed.3. Yogyakarta: Gadjah Mada University Press, 2002.
Lua MLA (9ú heag.)HARDIYATMO, Hary Christady. Mekanika Tanah Jilid 1.-- Ed.3. Gadjah Mada University Press, 2002.
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