Bernstein, Lewis
Norwalk Appletton century crofts , 1985
Buku Teks SO
edited by Haruo Katsunuma, Nobuhiro Maruchi and Masami Togo
SEAMIC, 1977
Buku Teks
edited by Maria Wawer ... [and others]
Westview Press, 1985
Buku Teks
Clemen-Stone, Susan
Mosby, 1998
Buku Teks
edited by Stephen Paul Holzemer, Marilyn Klainberg
Jones & Bartlett Learning, 2014
Buku Teks SO