Kinown, Washington : U.S. Information Agency
Majalah, Jurnal, Buletin
Dac Hammarskjold foundation,
Majalah, Jurnal, Buletin
Ikeda, Daisaku, 1928-
Nichiren Shoshu International Center, 1976
Buku Teks SO
Harvester, 1990
Buku Teks SO
International Cultural Society of Korea , 1988
Buku Teks SO