Hardiyatmo, H. C., & Hardiyatmo, H. C. (2002). Mekanika Tanah 1 Hary Christady Hardiyatmo. Gadjah Mada University Press.
Dyfyniad Arddull ChicagoHardiyatmo, Hary Christady, and Hary Christady Hardiyatmo. Mekanika Tanah 1 Hary Christady Hardiyatmo. Gadjah Mada University Press, 2002.
Dyfyniad MLAHardiyatmo, Hary Christady, and Hary Christady Hardiyatmo. Mekanika Tanah 1 Hary Christady Hardiyatmo. Gadjah Mada University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.