Giebels, Lambert, author
Grasindo, 2001
Buku Teks
Giebels, Lambert, author
Grasindo, 2001
Buku Teks
Ward, A.C.
The English Language Book, 1928
Buku Teks
Hanna, Archibald, 1916-2010, author
Garland Publishing, 1985
Buku Referensi
Law Book Co. of Australia, 1952-1955
Buku Teks