by Susumu Nishimura, Barton, Derek Sir, Otto Meth-Cohn
Jared M. Diamond
William Kamkwamba
Kokuritsu Kokkai Toshokan (Japan)
Atta-ur- Rahman
Jean Baptiste Say
Shurtleff, William
Sujata V. Bhat
United States. General Accounting Office. RCED
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