MacEoin, Gary
P.J. Kenedy & Sons, 1963
Buku Teks
edited and translated by Yossef Rapoport and Emilie Savage-Smith
Brill, 2014
eBooks
Churchill, Winston, Sir, 1874-1965
Houghton Miffiln, 1949
Buku Teks
Robbins, Stephen P.
Pearson Education International, 2005
Buku Teks
Robbins, Stephen P.
Pearson Prentice Hall, 2005
Buku Teks