Fifty years of Indian parliament
edited by G.C. Malhotra
Lok Sabha Secretariiat, 2002.
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Hazeu, H.A.G.
Fifty years of electronic components 1921-1971
N.V. Philips Gloeilampenfabrieken, 1971
 Buku Teks
Scott-James, R.A.
Fifty years of English literature 1900-1950
Longman, 1951
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Dixit, J.N. (Jyotindra Nath), 1936-2005
Across borders : fifty years of India's foreign policy
Picus Books, 1998
 Buku Teks
Celebrating indonesia : fifty years with the ford foundation 1953-2003
Ford foundation , 2003
 Buku Referensi