Mehta, J.K.
Lectures on modern economic theory
Caitanya Publishing House, 1967
 Buku Teks
Agmon, Shmuel
Lectures on elliptic boundary value problems
American Book, 1965
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Chomsky, Noam
Language and problems of knowledge : the Managua lectures
MIT Press, 1992
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The study of social problems : five perspectives
edited by Earl Rubington, Martin S. Weinberg
Oxford University Press, 1981
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Mansfield, Edwin
Economic problems : principles, problems, decisions
W.W. Norton, 1974
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