Osaka : Graduate School of Human Sciences Osaka University
Majalah, Jurnal, Buletin
Jepang : Institute of Japanese Language Soka University
Majalah, Jurnal, Buletin
Japan : Kwansei Gakuin University
Majalah, Jurnal, Buletin
Osaka University,
Majalah, Jurnal, Buletin
Henderson, Algo D., author
Unesco Paris, 1970
Buku Referensi