Handbook of Japanese SociolinguisticsYoshiyuki Asahi, Mayumi Usami, Fumio Inoue · First published 2021Open the Tome
Amerika, Hawai Nikkei shakai no rekishi to gengo bunkaYoshiyuki Asahi, Kōsuke Harayama · First published 2015Open the Tome
Nyū taun kotoba no keisei katei ni kansuru shakai gengo gakuteki kenkyūYoshiyuki Asahi · First published 2008Open the Tome
