Hongkong : Chinese University Bulletin
Majalah, Jurnal, Buletin
Jepang : Hirosaki University, 2006,
Majalah, Jurnal, Buletin
Henderson, Algo D.
Unesco Paris, 1970
Buku Referensi
Osaka : Graduate School of Human Sciences Osaka University
Majalah, Jurnal, Buletin
Jepang : Institute of Japanese Language Soka University
Majalah, Jurnal, Buletin