Gaya APA
Hardiyatmo, H, C.
(2019).
Mekanika tanah 1
(
7)
.
Yogyakarta:
Gadjah Mada University.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika tanah 1".
7
Yogyakarta:
Gadjah Mada University,
2019.
Text.