John Wiley & Sons, 2003
Buku Teks
Huffman, Karen, author
John Wiley & Sons, 1994
Buku Teks
Rita L. Atkinson ... [et al.]
Harcourt Brace College, 1993
Buku Teks
by Clifford T. Morgan [and others]
McGraw-Hill, 1986
Buku Teks
Kagan, Jerome, author
Harcourt Brace Jovanovich, 1972
Buku Teks