Mulloy, William
Social Science Research Institute, University of Hawaii, 1978
Buku Teks
Terrell, John
Cambridge University PRess, 1988
Buku Teks
Wales, H. G. Quaritch
Bernard Quaritch, 1957
Buku Teks
Bellwood, Peter S., author
John Wiley & Sons, 2017
Buku Teks
SPAFA Co-ordination Unit., 1987
Buku Teks