APA Style
Hardiyatmo, H, C.
(2006).
Mekanika Tanah 1
(
4)
.
Yogyakarta:
UGM Press.
MLA Style
Hardiyatmo, Hary, Christady.
"Mekanika Tanah 1".
4
Yogyakarta:
UGM Press,
2006.
Text.