21
by Hibbeler, R. C.
Published 1998
22
by Tomasi, Wayne
Published 1998
23
by Theraja, B.L.
Published 1999
24
by Douglas, John F.
Published 2001
25
by Tokheim, Roger L.
Published 1999
26
27
28
29
by Gere, James M.
Published 2001
30
31
Published 1997
32
by Hayt, William H., Jr.
Published 2001
33
34
by Eide, Arvid R.
Published 2002
35
by White, Frank M.
Published 1999
36
37
38
by Floyd, Thomas L.
Published 2002
39
by Boylestad, Robert L.
Published 2003
40
by Floyd, Thomas L.
Published 1989