Lumb, R.D., author
Butterworth, 1974
Buku Teks
Kemp, Herman C., author
KITLV Press, 1990
Buku Referensi
[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah