Heisei 2-nen kokusei chōsa hōkoku. Dai 7-kan, jinkō idō shūkei kekka = 1990 population census of Japan. Volume 7, Results of tabulation on internal migration / [henshū Sōmuchō Tōkeikyoku].
平成2年国勢調查報告, 第7卷, 人口移動集計結果 = 1990 population census of Japan. Volume 7, Results of tabulation on internal migration / [編集総務庁統計局].