Heisei 2-nen kokusei chōsa hōkoku. Dai 3-kan : dai 2-ji kihon shūkei kekka = 1990 population census of Japan. Volume 3 : results of the second basic complete tabulation
Heisei 2-nen kokusei chōsa hōkoku. Dai 4-kan, Dai 3-ji kihon shūkei kekka = 1990 population census of Japan. Volume 4, Results of the second basic complete tabulation
Jinkō kaikyūbetsu jinkō, setaisū : shichōson jinkō oyobi shichōson no jinkō shūchū chiku jinkō ni yoru = Population and households by population size of shi, machi, and mura and of DIDs