2011 Indonesian-American Kavli Frontiers of Science Symposium
Indonesian-American Kavli Frontiers of Science, 2011
 Buku Teks SO
World population and food supplies, 1980 /A symposium sponsored by the American Society of Agronomy
Wisconsin American Society of Agronomy , 1965
 Buku Teks SO
Zavelski, F
Comment on Mesure le Temps
Moscou Editions en Langues Etrangeres 1959
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Comment on the Commentaries and A Fragment on Government
edited by J.H. Burns, H.L.A. Hart
Oxford University Press , 2008
 Buku Teks SO
Cybernetics, artificial intelligence, and ecology: proceedings of the fourth annual symposium of the American Society for cybernetics
edited by Herbert W. Robinson; Douglas E. Knight
Spartan Books , 1972
 Buku Teks SO