edited by Judy Reynolds
Haworth Press, 1994
Buku Referensi
Cunningham, Lawrence S.
Cengage Learning, 2018
Buku Teks
Cunningham, Lawrence
Cengage Learning, 2018
Buku Teks
Cunningham, Lawrence
Thomson/Wadsworth, 2014
Buku Teks
Cunningham, Lawrence S.
Harcourt Brace College Publisher, 1994
Buku Teks