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Dyfyniad Arddull ChicagoHARY Christady Hardiyatmo. Mekanika Tanah 1. Yogyakarta: Gadjah Mada University Press, 2017.
Dyfyniad MLAHARY Christady Hardiyatmo. Mekanika Tanah 1. Yogyakarta: Gadjah Mada University Press, 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.