Forman, Harrison
Crown Publisher, 1948
Buku Teks
Salisbury, Harrison E., author
Harper & Row, Pub., 1967
Buku Teks
Salisbury, Harrison E.
Harrison, 1969
Buku Teks
E. Aminudin Aziz
Indonesia University of Education. Faculty of Language and Art Education, 2005
Artikel Jurnal
Artikel Jurnal