Departemen of social security
Australian Goverment Publishing Service, 1993
 Buku Teks
An introduction to social security / International Labour Organization
ILO, 1970
 Buku Teks
Social security reform: conference proceedings; links to saving, investment, and growth
edited by Steven A. Sass and Robert K. Triest
Federal Reserve Bank of Boston, 1997
 Buku Teks
Lee, Sangheon, author
Social security and firm performance: yhe case of Vietnamese SMEs / Sangheon Lee
Blackwell Publishing, 2017
 Artikel Jurnal
Niwata, Noriaki
The economic theory of insurance and social security
Society of business and commerce, Keio University, 1971
 Buku Teks
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