Gaya APA

Shaeffer, R, E. (2002). (TEKNIK SIPIL 1) Elementary Structures For Architects and builders (4). New Jersey: Prentice-Hall.

Gaya MLA

Shaeffer, R., E.. "(TEKNIK SIPIL 1) Elementary Structures For Architects and builders". 4 New Jersey: Prentice-Hall, 2002. .