Gaya APA
BOWLES, J, E. (1996).
FOUNDATION ANALYSIS AND DESIGN : FIFTH EDITION (ED. 5).
NEW YORK:
McGRAW-HILL, Inc.
Gaya MLA
BOWLES, JOSEPH, E..
"FOUNDATION ANALYSIS AND DESIGN : FIFTH EDITION".
ED. 5
NEW YORK:
McGRAW-HILL, Inc,
1996.
Prodi S1 Teknik Sipil.