Abi Fajri Abdillah
University of Chicago, 1957
Koleksi Publik
edited by Oscar Handlin and John Burchard
MIT Press and Harvard University, 1963
Buku Teks SO
Szuma, Chien
Commercial Press, 1985
Buku Teks SO
Siti Amsariah
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2017
UI - Disertasi Membership
Toynbee, Arnold J.
Oxford University Press, 1956
Buku Teks