New Guinea on the threshold : aspects of social,political and economic development
edited by E.K. Fisk
Australia National University, 1966
 Buku Teks
Continuity and change in latin America / edited by John J. Johnson
Stanfort University Press, 1964
 Buku Teks
Economic development and social change: the modernization of village communities
edited by George Dalton
New York, 1971
 Buku Teks
Pattern for rural reform: development potentialas of Northern and Eastern Mindanao
Solidaridad Publishing House, 1969
 Buku Teks
Nisbet, Robert A.
Social change and history: aspects of the Western theory of development
Oxford University Press, 1970
 Buku Teks