Lasdin Wlas
Liberty, 1989
Buku Teks
Badudu, Jusuf Syarif
Gramedia Pustaka Utama, 1993
Buku Teks
Badudu, Jusuf Syarif
Gramedia, 1988
Buku Teks
Tahija, Julius
Gramedia Pustaka Utama , 1997
Buku Teks
Department of Foreign Affairs and Trade Canberra Australia
Pustaka Sinar Harapan , 1994
Buku Teks