Handbook of Japanese SociolinguisticsYoshiyuki Asahi, Mayumi Usami, Fumio Inoue · First published 2021Open the Tome
Discourse politeness in Japanese conversationMayumi Usami, Harvard University. Graduate School of Education · First published 1999Open the Tome
Politeness and Japanese conversational strategiesMayumi Usami, Harvard University. Graduate School of Education · First published 1994Open the Tome
