@article{oai:kansaigaidai.repo.nii.ac.jp:00006682,
 author = {Layzer, Carolyn and Sharkey, Judy},
 journal = {研究論集, Journal of Inquiry and Research},
 month = {Aug},
 pages = {105--126},
 title = {Proficiency, Portfolios, and Learner Development in the Reading Classroom},
 volume = {64},
 year = {1996}
}