INOUE, Fumio (2012b) “Nihongo sekai shinshutsu no Guguru gengo chirigaku (Google linguistic geography of global extension of Japanese language),...
INOUE, Fumio (2013) “A Contemporary History of Okazaki Honorifics”, Working Papers from NWAV Asia-Pacific, 2, 1-9, http://www.ninjal.ac.jp/socioling/nwavap02/Inoue-...
INOUE, Fumio & Yarimizu KANETAKA (2002) Jiten Atarashii Nihongo (Dictionary of New Japanese), Tokyo: Toyo Shorin.
KANEHATA, Nobue (2012) Tokyo Kotoba Jiten (Tokyo Speech Dictionary), Tokyo: Meiji shoin. KENBO, Hidetoshi et al.(1992)Sanseido...
KOKURITSU KOKUGO KENKYUJO (1966-1974) Linguistic Atlas of Japan (LAJ), Vols. 1-6, Tokyo, Okurasho Insatsukyoku.
KUNIHIRO, Tetsuya, Fumio INOUE, Daniel LONG (eds.) (1998) Takesi Sibata: Sociolinguistics in Japanese Contexts, Berlin / New York: Mouton...
LABOV, Willam (1972) Sociolinguistic Patterns, Philadelphia: University of Pennsylvania Press.
PRESTON, Dennis R. (1989) Perceptual Dialectology, Dordrecht: Foris.
SHIBATANI, Masayoshi (1990) The languages of Japan, Cambrige: Cambridge University Press.
SAPIR, Edward (1921) Language, New York: Harcourt, Brace & Would.
TAJIMA, Ikudo (1999)Hikaku Goi Kenkyu Josetsu (Introduction to Contrastive Lexicography), Tokyo: Kasama Shoin.