Keiji seisaku ga wakaruTadahiro Maeda, Hideyo Matsubara, Mari Hirayama, Ikuzō Maeno · First published 2014Open the Tome
Shihō fukushiSachio Katō, Tadahiro Maeda, Masanori Fujiwara, Takashi Furukawa · First published 2013Open the Tome
Keijihō riron no tankyū to hakkenToyoji Saitō, Asada, Kazushige, Hideaki Kawasaki, Hiroyuki Kuzuno, Tadahiro Maeda, Takaaki Matsumiya · First published 2012Open the Tome
