Speziale, Helen J. Streubert
J.B. Lippincott , 1995
Buku Teks
Speziale, Helen J. Streubert
Lippincott Williams & Wilkins, 2003
Buku Teks
edited by Edmund A. Bowles
Prentice-Hall, 1967
Buku Teks
Marshall, Catherine
Sage, 1999
Buku Teks
Silverman, David
Buku Teks