by Yoichi Okazaki [and others]
Foreign Press Center, 1990
Buku Teks
Quadagno, Jill S.
St. Martin's Press, 1980
Buku Teks
Hillier, Susan
Wadsworth and Cengage Learning, 2011
Buku Teks
edited by John Field, Ronald J. Burke and Cary L. Cooper.
SAGE, 2013
Buku Referensi
Burda, Angela N.
Jones & Bartlett Learning, 2011
Buku Teks