Mackinnon, John Ramsay
[publisher not identified], [date of publication not identified]
Buku Teks SO
King, Victor T.
Blackwell, 1993
Buku Teks
Yates, Steve
Facts On File, 1992
Buku Referensi
Mackinnon, John Ramsay
Borneo.amsterdam Time Life, 1975
Buku Teks
King, Victor T.
Blackwell, 1993
Buku Teks SO