Kenryoku vs shiminteki jiyūYŏng-hak Han, Kazumi Ōtsuka, Tetsu Ukita, Yasuhiko Tajima · First published 2018Open the Tome
Himitsu hogohō nani ga mondai kaYūichi Kaido, Tsutomu Shimizu, Yasuhiko Tajima, Osamu Nishitani · First published 2014Open the Tome
Tokutei himitsu hogohō to sono saki ni aru monoMurai, Toshikuni, Yasuhiko Tajima · First published 2014Open the Tome
Jōhō kōkaihō, Kojin jōhō hogohō, Kōbunsho kanrihōMasahiro Uzaki, Kazuteru Tagaya, Yasuhiko Tajima, Hiroshi Miyake, Mikio Akiyama · First published 2013Open the Tome
Chōsa hōdō ga jānarizumu o kaeruYasuhiko Tajima, Hiroshi Yamamoto, Toshio Hara · First published 2011Open the Tome
Jūki netto to kanshi shakaiYamamoto, Hiroshi, Yasuhiko Tajima, Takao Saitō · First published 2003Open the Tome
Tōchōhō no sōgōteki kenkyūMasahiro Uzaki, Hideaki Kawasaki, Yasuhiko Tajima · First published 2001Open the Tome
Hōdōsareru gawa no jinkenĪmuro,Katsuhiro, Yasuhiko Tajima, Shinji Watanabe · First published 1999Open the Tome
