Daillant, Georges, author
International Universities Bureau of the International Association of Universities, 1990
Buku Referensi
Keohane, Robert Owen, 1941-, author
Longman, 2012
Buku Teks
Barke, Michael, author
Longman Scientific & Technical, 1991
Buku Teks SO
Barke, Michael, author
Longman Scientific & Technical, 1991
Buku Teks SO
edited by Madeleine M. Leininger
National League for Nursing Press , 1991
Buku Teks