The Global predicament: ecological perspectives on world order
edited by David W. Orr
University of North Carolina Press, 1979
 Buku Teks
Masson, VeNeta
International nursing
Springer Publ ., 1981
 Buku Teks SO
Masson, VeNeta
International nursing
Springer Publ ., 1981
 Buku Teks SO
International perspectives in rural sociology
edited by Howard Newby
John Wiley & Sons, 1978
 Buku Teks
Olson, William Clinton
The theory and practice of international relations
Prentice Hall International, 1994
 Buku Teks