@book{ BA52961829,
  author    = "Dörnyei, Zoltán and Schmidt, Richard W.",
  title     = "Motivation and second language acquisition",
  publisher = "Second Language Teaching & Curriculum Center, University of Hawai`i at Mānoa",
  year      = "2001",
  series    = "Technical report",
  number    = "#23",
  URL       = "https://ci.nii.ac.jp/ncid/BA52961829"
}