Gaya APA
Hardiyatmo, H, C.
(2018).
Mekanika Tanah 2
(
6)
.
YOGYAKARTA:
GADJAH MADA UNIVERSITY PRESS.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika Tanah 2".
6
YOGYAKARTA:
GADJAH MADA UNIVERSITY PRESS,
2018.
Text.