1993 (Heisei 5)-nen dai 1-kai zenkoku katei dōkō chōsa : gendai Nihon no kazoku ni kansuru ishiki to jittai = The first national survey on family in Japan, 1993
Waga kuni no jinkō shūchū chiku : Shōwa 35-nen kokusei chōsa ni yoru jinkō shūchū chiku no jinkō, menseki, oyobi chizu = Densely inhabited district : 1960 population census : its population, area, and map