Gaya APA
Hardiyatmo, H, C.
(2012).
Mekanika Tanah 1
(
6)
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika Tanah 1".
6
Yogyakarta:
Gadjah Mada University Press,
2012.
Text.