Gaya APA
Hardiyatmo, H, C.
(2006).
Mekanika Tanah I
(
IV)
.
Yogyakarta:
Gajah Mada University Press.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika Tanah I".
IV
Yogyakarta:
Gajah Mada University Press,
2006.
Text.