外国人ひらがな 特殊音節 問題 - SERP Analysis

https://ncode.syosetu.com/n1496bp/

https://www.jpf.go.jp/j/project/japanese/teach/tsushin/research/031.html

https://www.youtube.com/watch?v=Sa_Q_F_ThMw

https://cotohajime.net/2021/01/29/gaikokujin-ni-kikaretara-1/

https://meisei.repo.nii.ac.jp/record/1981/files/kyoiku-no25-a10.pdf

https://m.youtube.com/watch?v=s0KuT0cY5eo&t=73s

https://nihongocafe.jp/7-hiragana-practice-apps/

https://www.nier.go.jp/saka/pdf/N10020066.pdf

https://www.youtube.com/watch?v=jtOju8g2FSI

https://japan.tsukuba.ac.jp/research_r/pdf/14.-Vol-16-Complete_Part3.pdf

https://startoo.co/workbook/80684/

https://langoal.com/teaching-materials/hiragana-practice-sheet.html

https://takairap.exblog.jp/31504896/

https://www.youtube.com/watch?v=l43ZnkR3DOI

https://sld-colorfulbird.com/archives/7679

https://gsjal.jp/toda/dat/art01.pdf

https://teapot.lib.ocha.ac.jp/record/38919/files/14_115-125.pdf

https://kodomo-no-nihongo.com/wp-content/uploads/2025/03/30811cff9d482c9b77bfa3da64e74c61.pdf

https://tufs.repo.nii.ac.jp/record/2897/files/jo000403.pdf

https://www.sanko-nihongo.com/column/pronunciation/

https://blog.goo.ne.jp/naoyapunch/e/b2f05847bf8483c7e5d3a5b7701abae4

https://www.city.musashino.lg.jp/_res/projects/default_project/_page_/001/007/045/center33.pdf

https://repository.dl.itc.u-tokyo.ac.jp/record/2001706/files/A35564_summary.pdf

https://jp.quora.com/naze-nihongo-ha-kanji-hi-ra-ga-na-katakana-nado-shurui-ga-ari-fukuzatsu-nanode-suka

https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q12143624247

https://core.ac.uk/download/pdf/147856169.pdf

https://www.meijitosho.co.jp/app/kanatore/

https://tandem-web.co.jp/writing

https://mond.how/topics/m7rvfpy3qj09wg8

https://www.kodomo-kotoba.info/booklet/basicsearch_booklet_02_01.html

https://ten.tokyo-shoseki.co.jp/detail/90818/

https://u.muroran-it.ac.jp/hlc/2010/02Shirai.pdf

https://note.com/naminorism_eng/n/n8c5d99ee3e6f

https://repository.ninjal.ac.jp/record/1263/files/kkrep_045.pdf

https://conobas.net/blog/education/10871/

https://www.jstage.jst.go.jp/article/jald/29/1/29_33/_pdf

https://www.city.yokohama.lg.jp/kosodate-kyoiku/kyoiku/soudan/nihongoshido-tebiki.files/250131-2.pdf

https://www.kyorin-u.ac.jp/univ/graduate/international/student/report/kan.pdf

https://www.cajle.ca/wp-content/uploads/2022/10/volume-06-1-15.pdf

https://www.tomojuku.com/blog/phonetics/

https://land.toss-online.com/lesson/aauvnphzovvnxqk5

https://erid.nier.go.jp/files/COFS/s26eja/add.htm

https://ngeckca.digital/,r2z7aa9bhjcudar3t/u337.jspx

https://www.akita-u.ac.jp/honbu/global/en/abroad/inbound/pdf/imu_2008-2009.pdf

https://note.com/keisensei/n/n1db981c110cb

https://www.hamasensei.com/2017-1-3a/

https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1210903037

https://jp.quora.com/hi-ra-ga-na-katakana-kanji-arufabetto-to-nihonjin-ha-4-tsu-no-moji-wo-benkyou-shina-ke-re-ba-nara-nai-desuga-eigo-ha-arufabetto-dake-4-tsu-no-moji-wo-tsukaiwake-ru-no-ha-taihen-desu-yone