Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hayashibara Shin and Kawasaki Masamori and Kobayakawa Yoshinobu and Yasumatsu Hiroyoshi and 中村 千絵 and Fukazawa Seiji and Hirakawa Yukiko,A research on the Units Development of Foreign Language Activities in Elementary School : Analysis of the Effectiveness by Text Mining,学部・附属学校共同研究紀要,13465104,広島大学学部・附属学校共同研究機構,2011-03-24,39,,177-182,https://cir.nii.ac.jp/crid/1390572174807660416,https://doi.org/10.15027/31237