Pergamon Press, 2018
Majalah, Jurnal, Buletin
by Robert J. Brooker ... [and others]
McGraw-Hill, 2008
Buku Teks
by Eldra Pearl Solomon [and others]
Saunders College, 1993
Buku Teks
Case, James F.
Macmillan, 1979
Buku Teks
Campbell, Neil A., 1946-2004
Benjamin/Cummings, 1993
Buku Teks