@article{oai:shizuoka.repo.nii.ac.jp:00012085,
 author = {Jung, Kiho and Otaka, Yuki},
 issue = {6},
 journal = {World Journal of Education},
 month = {Dec},
 note = {application/pdf},
 pages = {57--64},
 title = {The Introduction of a Thin-bending Wood Horn Speaker as Multipurpose Teaching Material in Japanese Junior High School Technology Classes},
 volume = {9},
 year = {2019}
}