Vien, Nguyen Khac
Foreign Languages Publishing House, 1975
Buku Teks
Shaplen, Robert, author
Harper & Row, 1965
Buku Teks
Ngoc, Nguyen, author
Foreign Languages Publishing House, 1961
Koleksi Publik
Xunhasaba, 1972
Buku Teks
Higgins, Hugh, author
Heinemann Educational, 1975
Buku Teks