Memahami nilai nilai Universal dalam demokrasi melalui pembelajaran sejarah
 Artikel Jurnal
Arneson, Ben A.
The Democratic Monorchies of Scandinavia
D.Van Nostrand Company, 1938
 Buku Teks SO
Mayo, Henry B.
An introduction to democratic theory
Oxford University Press , 1960
 Buku Teks SO
Dahl, Robert A., 1915-2014
A preface to democratic theory
The University of Chicago Press, 1956
 Buku Teks SO
Cahn, Edmond
The predicament of democratic man
Vakils, Feffer and Simons, 1961
 Buku Teks SO