Wang, Vivienne, author
[, Springer], 2012
eBooks
Kweku-Muata Osei-Bryson, Gunjan Mansingh, Lila Rao
Springer, 2014
Buku Teks
Geneva United Nations 1975,
Buku Teks
Honold, Linda
Davies-Black, 2000
Buku Teks
Carrin, Guy, author
Macmillan, 1992
Buku Teks