edited by Ivor F. Goodson
Routledge, 1992
Buku Teks
Singh, Jaswant
Rupa & Co, 2006
Buku Teks
Geest, Wim de, author
Foris Publications, 1989
Buku Teks
R. Soejitna Martaatmadja, author
Bale Pustaka, 1923
Buku Klasik
Sunny T.H. Goh, author
Bhuana Ilmu Populer, 2003
Buku Teks