Gaya APA
Hardiyatmo, Hary Christady. (2017).
Mekanika Tanah 1 (7th Ed.).
Yogyakarta:
UGM.
Gaya Chicago
Hardiyatmo, Hary Christady.
Mekanika Tanah 1.
7th Ed.
Yogyakarta:
UGM,
2017.
Text.
Gaya MLA
Hardiyatmo, Hary Christady.
Mekanika Tanah 1.
7th Ed.
Yogyakarta:
UGM,
2017.
Text.
Gaya Turabian
Hardiyatmo, Hary Christady.
Mekanika Tanah 1.
7th Ed.
Yogyakarta:
UGM,
2017.
Print.