Tokyo Statistical Yearbook, 1990 / Dai 42 kai Tôkyô to tôkei nenkan heisei 2 nen
a : The Building Standard Law of Japan ; b : Designation of Noncombustible Materials - Notification No. 1828, Dec. 28, 1970 ; c : Designation of Quasi - Noncombustible Materials and Fire Retardant Materials - Notification No. 1231, Aug. 25, 1976 ; d : Establishment of Technical Standards for Ensuring Structural Safety of Wood Frame Construction - Notification No. 56, Jan. 18, 1982 ; e : Establishment of Technical Standards for Ensuring Structural Safety of Log Construction - Notification No. 859, March 29, 1986, September 1990
White Paper on Construction in Japan 1992
Annual Report on the Transport Economy, Summary (Fiscal 1991) / Eibun un'yu hakusho
Japan Trade Directory 1993 - 94
Japanese Government Policies in Education, Science and Culture 1991
Japan : Laws, Ordinances and Other Regulations concerning Foreign Exchange and Foreign Trade (1992) / Saishin eibun gaikoku kawase kanri hôreishû
Science and Technology Research in Japan's Future Reference Reading Series 22
Antimonopoly Legislation of Japan, 1984
Economic Survey of Japan 1990-1991: Conditions for Long Run Expansion and Japan's International Role / Eibun keizai hakusho