Koichi Takase. Academic Survey on the IFRS Adoption Status around the Globe: Summary of the First Results. SANKEN Series, Research Institute of Business Administration (RIBA), Waseda University. 2018. 49. 139-162
Koichi Takase. Profit Return to Altruistic Donors of Foreign Aid. Working Paper, Research Institute of Business Administration, Waseda University. 2016. 2016-001