Kyoto University of Education I Fujinomori-cho, 2006
Majalah, Jurnal, Buletin
Nanzan University, 2008
Majalah, Jurnal, Buletin
Matthias Pilz
VS Verlag, 2012
eBooks
The University , Iowa City, 1912
Buku Klasik
Edited by William James
Anmol Publications PVT. LTD., 2005
Buku Teks