2012.2.1〜2.2 Legal consultation with respect to Saudi Arabian Law Tokyo External Seminars Chika Igarashi(Lecturer) Teruyuki Yamamoto(Lecturer) Tatsuo Tezuka(Lecturer) and others
2011.11 Treatise on Japanese Taxation Books Yo Ota(Author) Yasutaka Nishikori(Author) Akihiro Hironaka(Author-Editor) and others
2011.7 Frontiers of Transfer Pricing (in J) Books Yo Ota(Author-Editor) Akihiro Hironaka(Author-Editor) Tsuyoshi Ito(Author) and others
2010.11 Development of Tax Law in Japan Books Yo Ota(Author) Yasutaka Nishikori(Author) Akihiro Hironaka(Author) and others
2010.7 Frontlines of International Tax Litigation (in J) Books Yo Ota(Author-Editor) Michihiro Mori(Author) Akihiro Hironaka(Author-Editor) and others