The First conference of Asean ministers responsible for information
Departement of Information, 1989
 Buku Referensi
Italy Today / Presidency of the Council of Ministers of the Republic of Italy
Presidency of the Council of Ministers of the Republic of Italy, Information Service, 1962
 Buku Teks SO
Meeting of ministers in preparation for the second African-Asian Conference
1964
 Buku Teks SO
Hughes, Colin Anfield
Mr Prime Minister : Australian Prime Ministers, 1901-1972
Oxford University Press, 1976
 Buku Teks SO
Lawson, Charles L.
Solving least squares problems
Society for Industrial and Applied Mathematics, 1995
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