Asian Association of Open Universities,
Majalah, Jurnal, Buletin
Seikei University, 2008
Majalah, Jurnal, Buletin
The officer of Education Research and Development Ministry of National Education,
Majalah, Jurnal, Buletin
Waseda University Printing Office,
Majalah, Jurnal, Buletin
ISDCO, {s.a}
Majalah, Jurnal, Buletin