@article{oai:shizuoka.repo.nii.ac.jp:00008416,
 author = {Shirahata, Tomohiko and Ogawa, Shuhei},
 journal = {Bulletin of the Faculty of Education, Shizuoka University. Social and Natural Sciences and Liberal Arts Series},
 month = {Mar},
 note = {application/pdf},
 pages = {43--58},
 title = {Difficulty order of fourteen different types of wh-questions in English by Japanese high school students : A preliminary study},
 volume = {67},
 year = {2017}
}