Gaya APA
Hardiyatmo, H, C.
(2010).
Mekanika tanah 2
(
5)
.
Yogyakarta:
Gadjah Mada University.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika tanah 2".
5
Yogyakarta:
Gadjah Mada University,
2010.
Text.