edited by Hennig Cohen
Basic Book, 1969
Buku Teks
edited by Richard Kostelanetz
United States International Communication Agency, 1982
Buku Teks
edited by Richard Kostelanetz
United States International Communication Agency, 1982
Buku Teks
Pacey, Desmond
Ryerson Press, 1952
Buku Teks
Abel, Darrel
Barron's Educational Series, 1963
Buku Referensi