[publisher not identified], 1979
Buku Teks SO
Soemono
Djambatan, 1980
Buku Teks SO
Hibbeler, R.C.
Pearson - Prentice Hall, 2006
Buku Teks SO
Ferdinand P. Beer, E. Russell Jr Johnson, John T. Dewolf, David F Mazurek
McGraw-Hill, 2009
Buku Teks SO
Frick, Heinz
Kanisius, 1979
Buku Teks SO