Moniz, Amanda B., author
Oxford University Press, 2016
eBooks
Smelser, Marshall, author
Barnes & Noble, 1873
Buku Teks
Mayer, Henry
Frnklin Watts, 1986
Buku Teks
edited by Jack P. Greene, J.R. Pole
Blackwell , 1994
Buku Referensi
Gagey, Edmond M., author
Columbia University Press, 1948
Buku Teks