Drewes, G.W.J. (Geradus Willebrodus Joannes), 1899-, author
Martinus Nijhoff, 1975
Buku Teks
Scott, J. D.
Eyre and Spottiswoode, 1954
Buku Teks
Dixon, Jay
UCL Press, 1999
Buku Teks
Sagan, Carl, author
Presidio Press, 1980
Buku Teks
Eickelman, Dale F., author
Princeton University Press, 2004
Buku Teks