Drazen, Erica L., author
New York, Springer, 1995.,
Buku Teks
Drazen, Erica L., author
New York, Springer, 1995.,
Buku Teks
Lucas, Henry C., author
McGraw-Hill, 1976
Buku Teks
Saldarini, Robert A.
Macmillan Publishing Company, 1990
Buku Teks
Cecelja, Franjo, author
Penton, 2002
Buku Teks