Leo Hamalian
Ararat Press, 1978
Buku Teks
Cunningham, Valentine, author
Blackwell Publishers, 2002
Buku Teks
edited by François Pouillon, Jean-Claude Vatin
Brill, 2015
eBooks
Turville-Petre, Thorlac, author
Blackwell Publishing, 2007
Buku Teks
Bullard, Reader
Oxford university Press, 1958
Buku Teks