(Reference)
Leister R. Brown： "Global White Paper 1998-99" and "Global White Paper 1993 - 94"
National Land Agency： "Water Resource in Japan" (1998 and 1994)
World Resource Research Center "World Resources and Environment 1992 - 93"
Junko Nakanishi： "Environmental Strategy for Water"
Shigenori Maruyama and Yukio Isozaki： "History of Earth in Relation to Living Creatures"
Industrial Research Center "Research on Economic Development and Human Resources"
Atushi Ohtomo and Haruo Sagaza： "Urbanization of Populations in Asian Countries"
United Nations： "The State of World Population"
Sandra Postel and Zenbei Uchijima "Politics of the Shortage Era-Torn Water Resources"
Food and Agriculture Organization (of the United Nations)： "Rome Declaration on World Food Security and World Food Summit Plan of Action"
Hiroyuki Ishi "Report on the Global Environment"
(APDA)： "Comparative Study of Population Policies in Asia-Focus on Eight Asian Countries - "
