Check if the book you are looking for is in the University of Tsukuba Library or the Tsukuba City Library
无理数
https://kdpuploader.com
https://libron.net
kiwidude.calibre
Sarah Park
https://librofertas.com
TianWangLiJing
https://www.library.universiteitleiden.nl/
https://readeraforpc.blogspot.com
chriszlibrarian
ND Dang Khoa
Sarah Park
