2件 （「Y. HIRAI」）

TRENDS IN EDUCATIONAL PSYCHOLOGY IN JAPAN 論文

Hideo KOJIMA・Toshihiko HAYAMIZU・Noriko AOI・Kazuhito YOSHIZAKI・Kenji HIRAISHI ·1988 ·『教育心理学年報』　27(0)　pp. 116-141

doi:10.5926/arepj1962.27.0_116

Overwintering of the apple snail, Pomacea canaliculata LAMARCK, in north Kyushu. 論文

Shingo ÔYA・Y. HIRAI・Yoshio MIYAHARA ·1987-01-01 ·『Japanese Journal of Applied Entomology and Zoology』　31(3)　pp. 206-212

doi:10.1303/jjaez.31.206