Bes, Daniel R., author
Springer, 2012
eBooks
Ahuja, B. N., author
Surjeet Publications, 1990
Buku Teks
Naber, Gregory L., author
Springer, 2012
eBooks
Swanson, Robert M., author
South-Western Publ. , 1987
Buku Teks
Travers, Kenneth J., author
Laidlaw Brothers, 1987
Buku Teks