Mehta, J.K., author
Caitanya Publishing House, 1967
Buku Teks
Robinson, Joan, author
Basil Blackwell, 1960
Buku Teks
Perkins, John, author
Abdi Tandur, 2005
Buku Teks
Bank Indonesia, 2015
Multimedia
Robinson, Marshall A., author
Brookings Institution, 1962
Buku Teks