New Guinea on the threshold : aspects of social,political and economic development
edited by E.K. Fisk
Australia National University, 1966
 Buku Teks SO
Economic development and social change: the modernization of village communities
edited by George Dalton
New York, 1971
 Buku Teks SO
Pattern for rural reform: development potentialas of Northern and Eastern Mindanao
Solidaridad Publishing House, 1969
 Buku Teks SO
Nisbet, Robert A.
Social change and history: aspects of the Western theory of development
Oxford University Press, 1970
 Buku Teks SO
Eka Afrina
Strategi intervensi sosial dalam pengembangan potensi pemuda di Purna Caraka Muda Indonesia (PCMI) DKI Jakarta = Social intervention strategies in the potential development of youth in Purna Caraka Muda Indonesia PCMI DKI Jakarta / Eka Afrina
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
 UI - Tesis Membership