Olson, William Clinton
The theory and practice of international relations
Prentice Hall International, 1994
Buku Teks
International perspectives in rural sociology
edited by Howard Newby
John Wiley & Sons, 1978
Buku Teks
Messel, H.
Energy for survival ; International Science School for High School Students, 20th, University of Sydney, 1979
Pergamon Press, 1979
Buku Teks
Leininger, Madeleine M.
Transcultural nursing : concepts, theories and practices
John Wiley & Sons, 1978
Buku Teks
Blalock, Hubert M.
Quantitative sociology : international perpectives on mathematical and statistical modeling
Academic Press, 1975
Buku Teks