Spaniol, Otto, 1945-, author
John Wiley & Sons, 1981
Buku Teks
Mano, M. Morris, 1927-, author
Prentice-Hall, 1997
Buku Teks
Kokot, Jozef, author
Wydawnictwo Zachodnie, 1957
Buku Teks
Bittle, Celestine N., author
The Bruce Publishing, 1950
Buku Teks
Leblanc, Hugues
Mass. Allyn and Bacon , 1974
Buku Teks