O`hear, Anthony
Beyond evolution: human nature and the limits of evolutionary explanation
Clarendon Press, 1997
 Buku Teks
Gardiner, K.H.J.
The early history of Korea: the historical development of Peninsula up to introduction of Buddhism in the fourth century A. D. / K.H.J. Gardiner
The Australian National university Press, , 1969
 Buku Teks
Reynolds, Charles
Theory and explanation in international politics
Martin Robertson, 1973
 Buku Teks
Boudon, Raymond
The Sociological explanation / Raymond Boudon
Presses Universitaires de France, 1971
 Buku Teks
Harre, R.
The explanation of social behaviour
Littlefield, Adams, 1972
 Buku Teks