Institute of Social Science, University of Tokyo,
Majalah, Jurnal, Buletin
Korean Social Science Research Council, 2003
Majalah, Jurnal, Buletin
Philippines : De La Salle Univesrsity-Manila, 2005,
Majalah, Jurnal, Buletin
Unesco , 1952
Buku Teks
by George C. Atteberry ... [at al.]
Macmillan, 1950
Buku Teks