Toshitaka Nagahiro. Education in Prewar Japan: From Apprentice to Entrepreneur. Working Paper Series (Faculty of Economics, Wakayama University). 2021. 21. 01
Toshitaka NAGAHIRO, Yu YAMAMOTO. The International Coal Cartels in the East Asian Market,1916-37. Working Paper Series Institute of Economic Research, Kagawa University. 2019. 226. 1-30
A History of Business Cartels: International Politics, National Policies and Anti-Competitive Behaviour (Edited By Martin Shanahan, Susanna Fellman)
Routledge 2022 ISBN:0367649187
The International Coal Cartels in the East Asian Market,1916-37
(XVIII World Economic History Conference,Boston,Boston Marriott Cambridge & MIT Campus 2018)