Shewfelt, Robert L., author
Springer, 2012
eBooks
Seikei University, 2008
Majalah, Jurnal, Buletin
Rossman, Mark H.
SAGE Publ., 1995
Buku Teks
Osaka University,
Majalah, Jurnal, Buletin
Osaka : Graduate School of Human Sciences Osaka University
Majalah, Jurnal, Buletin