Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAI Nobumi,Features related to pro-forms and copula sentences in the English writing of Japanese learners,Cultures and Communication,1346-0439,The Japanese Association for English Studies,2023-03-24,43,1,9-29,https://cir.nii.ac.jp/crid/1390858553267462400,https://doi.org/10.57300/cac.43.1_9