Gaya APA
Hardiyatmo, H, C.
(2018).
Mekanika Tanah 1
(
Ed. 7)
.
Yogyakarta:
Gadjah Mada University Press.
Gaya MLA
Hardiyatmo, Hary, Christady.
"Mekanika Tanah 1".
Ed. 7
Yogyakarta:
Gadjah Mada University Press,
2018.
Text.