Hales, Dianne, author
Simon & Schuster, 2014
Buku Teks
Woolley, Leonard
Penguin Books , 1953
Buku Teks
Burley-Allan, Madelyn, author
John Wiley & Sons, 1982
Buku Teks
Schnitger, F. M.
Brill, 1964
Buku Teks
Mossner, Ernest Campbell, author
Columbia University Press, 1943
Buku Teks