Jennings, Lucy Mae, author
1983
Buku Teks
Jennings, Lucy Mae, author
Prentice-Hall, 1983
Buku Teks
Jennings, Lucy Mae, author
Prentince-Hall, 1983
Buku Teks
Trotman, Kathleen M.
McGraw-Hill , 1973
Buku Teks
Attridge, Catherina M., author
McGraw-Hill, 1983
Buku Teks