@article{oai:kuis.repo.nii.ac.jp:00000920,
 author = {Park, Siwon and Ito, Yasuko and Sugita, Megumi},
 journal = {言語教育研究},
 month = {Nov},
 note = {P(論文)},
 pages = {139--154},
 title = {L2 input, language aptitude, and acquisition of L2 grammar},
 volume = {23},
 year = {2012}
}