Ballast, David Kent
McGraw-Hill, 1994
Buku Referensi
Ballast, David Kent
Professional Publications, 2002
Buku Teks SO
Ohara, Steven E.
Professional Publications, 2002
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Kleinman, Kent
Pinceton Architectural, 2012
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Plunkett, Drew
Laurence King, 2010
Buku Teks SO