edited by Terence E. Hays
G.K. Hall, 1991
Buku Referensi
Ferraro, Gary P., author
Wadsworth, 2016
Buku Teks
Ferraro, Gary P., author
Cengage Learning, 2018
Buku Teks
Ferraro, Gary P., author
Delmar Cengage Learning, 2014
Buku Teks
Ingold, Tim, 1948, author
Polity Pres, 2018
Buku Teks