Barrett, Charles, author
William Heinemann, 1954
Buku Teks
Robson, R.W., author
Pacific Publications PTY, 1954
Buku Teks
Mytinger, Caroline
Macmillan, 1946
Buku Teks
Wilson, Lindsay
McGraw-Hill , 1975
Buku Teks
Kunst, Jaap, 1891-1960, author
Martinus Nijhoff , 1967
Buku Teks