Gaya APA
Das, Braja M. (2019).
Principles of Foundation Engineering (Ninth Edition).
USA:
Cengage Learning.
Gaya Chicago
Das, Braja M.
Principles of Foundation Engineering.
Ninth Edition
USA:
Cengage Learning,
2019.
Text.
Gaya MLA
Das, Braja M.
Principles of Foundation Engineering.
Ninth Edition
USA:
Cengage Learning,
2019.
Text.
Gaya Turabian
Das, Braja M.
Principles of Foundation Engineering.
Ninth Edition
USA:
Cengage Learning,
2019.
Print.