Zenji Koishikawa

title	ISBN-13 (ISBN-10)	year of publication
Danshoku no minzokugaku	978-4-8265-0383-9 (4-8265-0383-0)	2003
Gei no minzokugaku	978-4-8265-0435-5 (4-8265-0435-7)	2006