Cheun, Sang Buom
Pan Korean Book Corporation, 1975
Buku Teks SO
Myers, Alec Reginald
Penguin Books, 1952
Buku Teks SO
Doorn, Jacques van
Faculty of Social Sciences, Erasmus University Rotterdam, 1983
Buku Teks SO
edited, Frank J. Schwartz, Susan J. Pharr
Cambridge University Press , 2003
Buku Teks SO
Cornel University Press, 1993
Buku Teks