edited by Roodney A. Ellis
Routledge, Taylor & Francis Group, 2009
Buku Teks SO
Wass, Alonzo
Reston, VA: Reston Publishing, 1973
Buku Teks
Allen, Edward
John Wiley & Sons, 2011
Buku Teks SO
The American Institue of Architects; Janet Rumbarger, editor in chief ; Richard J. Vitullo, graphic editor.
John Wiley & Sons, 2003
Buku Referensi
Jensen, Cecil
McGraw-Hill Ryerson, 1982
Buku Teks SO