Loew, Sebastian
Routledge, 1998
Buku Teks
Classiques Hachette, 1964
Buku Teks
Blaufarb, Rafe, author
Oxford University Press, 2016
eBooks
edited by Cyril M. Harris
McGraw-Hill, 1977
Buku Teks
Siegel, Curt, author
Van Nostrand Reinhold, 1962
Buku Teks