Tudi Kernalegenn, Emilie van Haute (Role: Contributor, External Voting without Political Parties Abroad? Comparing Japan, South Korea and Taiwan (with Jisun Park and Boyu Chen))
Robert Harmel, Lars G. Svåsand (Role: Contributor, Inverse Relationship between Party Institutionalisation and Party System Competitiveness: The Transformation of Postwar Japanese Party Politics (with Hidenori Tsutsumi))
Rowman & Littlefield International, in partnership with ECPR Press, Mar, 2019 (ISBN: 9781785523021)
Da-Chi Liao, Boyu Chen, Michael J. Jensen (Role: Contributor, Voting Advice Applications in Japan: An Overview (with Hidenori Tsutsumi) / The Effects of VAAs on Voter’s Sophistication in Japan (with Hidenori Tsutsumi and Kazunori Inamasu))