Mandelbaum, Seymour J.
Mass. : MIT Press , 2000
Buku Teks
edited by Meredith L. Weiss and Saliha Hassan
Routledge, 2003
Buku Teks
Rubin, Seymour J., author
John Hopkins Press , 1956
Buku Teks
Oppenheimer, J. Robert
Somin and Schuster, 1955
Buku Teks SO
Harrigan, John J.
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Buku Teks