Kishibe, Shigeo
Kokusai Bunka Shinkokai, 1966
Buku Teks
Dunn, Charles James
Putnam, 1969
Buku Teks SO
Seoul Selection, 2011
Buku Teks
Cultural Properties Administration
Hollym, 2000
Buku Referensi
Makoto Kitada
Graduate School of Language and Culture, Osaka University, 2018
Artikel Jurnal