2件 （「Takahiro Okayasu」）

Psychological Stress of Victims and Bullies in Junior High School 論文

Takahiro Okayasu・Iwao Takayama ·2000-01-01 ·『The Japanese Journal of Educational Psychology』　48(4)　pp. 410-421

doi:10.5926/jjep1953.48.4_410

Classroom-Based Social Skills Education: Junior High School Students 論文

Rina Emura・Takahiro Okayasu ·2003-01-01 ·『The Japanese Journal of Educational Psychology』　51(3)　pp. 339-350

doi:10.5926/jjep1953.51.3_339