edited by Charles Leslie
Vintage Books, 1960
Buku Teks SO
Hutajulu, David Novum
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2015
UI - Makalah dan Kertas Kerja
edited by John L. Esposito
Syracuse University Presss, 1980
Buku Teks SO
edited by Donald Eugene Smith
Free Press, 1971
Buku Teks SO
Korean Overseas Information Service, 1978
Buku Teks SO