Allen, Lee, author
Hill And Wang, 1962
Buku Teks
Paundra Jhalugilang, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Skripsi Open
Bendixen, Alfred, author
Wiley-Blackwell, 2010
Buku Teks
Shapiro, Milton J., author
Julian Messner, 1961
Buku Teks
Burton, Margaret E., author
University of Chicago Press, 1941
Buku Teks