Miseru hōgenFumio Inoue, Atsuo Ōhashi, Nobuhiro Tanaka, Kōichirō Hidaka, Akemi Yamashita · First published 2013Open the Tome
Fuzokugo akusento kara mita Nihongo akusento no kōzōNobuhiro Tanaka · First published 2005Open the Tome
Kindai Nihon hōgen shiryōshūAkira Kimura, Junʼichi Kose, Nobuhiro Tanaka · First published 2005Open the Tome
