Toshitaka Nagahiro. Industrial disability in the Japanese railways business: the activity of Testudō Kōsaikai, 1931-1955. International Journal of Asian Studies. 2021. 1-17
長廣利崇. Vocational Training and Academic Study inJapan. Proceedings from International conference EDUCATION AND TRAINING AS BASIS FOR FUTURE. 2017. 159-169
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
Toshitaka Nagahiro(分担執筆). Japanese National Railways as a Social Enterprise: The Welfare Management of Tetsudou Kousaikai. Toshitaka Nagahiro Mai Yamashita・Toru Imajoh・Tetsuya Fujiwara・Makoto Ohtani,"A History of Disability in Modern Japan: The Impact of World War II on People with DisabilitiesWorking Paper Series No19-03, Wakayama University. 2019
The International Coal Cartels in the East Asian Market,1916-37
(XVIII World Economic History Conference,Boston,Boston Marriott Cambridge & MIT Campus 2018)