Kugler, Otto E.
Burges Publishing, 1968
Buku Teks
Pauli, Wolfgang F.
Houghton Miffiln, 1949
Buku Teks
Beck, Raymond W., author
Burgess, 1977
Buku Teks
Burgess Publishing Company, 1969
Buku Teks
Mader, Sylvia S., author
Wm. C. Brown Publisher, 1993
Buku Teks