Vohra, D.B.
New Delhi Munshiram Anoharlal 1992,
Buku Teks
Jakarta : Departemen Luar Negeri, 2007,
Majalah, Jurnal, Buletin
Brunei Press Sdn Bhd, 1999
Buku Referensi
Dennis, Clarence James, author
Angus & Robertson, 1957
Koleksi Publik
Dennis, C.J. (Clarence James), author
Angus and Robertson, 1988
Buku Teks