Jain, Girilal, author
Asia Publishing House, 1959
Buku Teks
United Nations , 1991
Buku Teks
edited by Francis Robinson
Cambridge University Press, 1989
Buku Referensi
Grumbine, R. Edward, author
[, IslanPress], 2012
eBooks
Lingqun, Li, author
Routledge, Taylor & Francis Group, 2018
Buku Teks