Sookmyung Institute for Multicultural Studies,
Majalah, Jurnal, Buletin
edited by Bipan Chandra and Sucheta Mahajan
Pearson Education, 2007
Buku Teks SO
Sookmyung Institute for Multicultural Studies, 2017
Majalah, Jurnal, Buletin
Wood, Dean
Gage Publishing, 1980
Buku Teks SO
Artikel Jurnal