J. Akiyama
(1), C. Nara
(2)
(1)
The Research Institute of the Educational Development, Tokai University, 2-28-4 Tomi-
gaya, Shibuya, Tokyo 151-8677, Japan., Japan,
(2)
Department of General Education, Kyushu Tokai Univershity, Kawayo, Minami-Aso, Aso,
Kumamoto, 869-1404, Japan., Japan
