Gaya APA
International, E. (2009).
Construction Materials Testing Equipment (Edisi 12).
Leighton Buzzard, Beds LU7 4WG:
ELE Internatioal.
Gaya MLA
International, ELE.
"Construction Materials Testing Equipment".
Edisi 12
Leighton Buzzard, Beds LU7 4WG:
ELE Internatioal,
2009.
Text Book Sipil.