Ngan, Lucille Lok-Sun
Springer, 2012
eBooks
Dugan, Michael
Melbourne: The MAcmillian Company of Australia; 1984,
Buku Referensi
Belle, Carl Vadivella
Institute of South East Asia Studies, 2015
eBooks
Tamagna, Frank M.
Institute of Pacific relations, 1941
Buku Teks
Thurnwald, Richard C.
George Routledge and Sons, 1935
Buku Teks