Radius Prawiro
Oxford University Press, 1998
Buku Teks
Govindu, Venu Madhav
Oxford University Press, 2016
eBooks
Kaunang-Roeroe, Maria H. E.
1983
UI - Tesis (Membership)
Schlesinger, Yames R.
Frederick A. Praeger, 1960
Buku Teks
Ungpakorn, Ji Giles
YLBHI, 1999
Buku Teks