Wessels, Charlyn
Drama
Oxford University Press, 1991
Buku Teks
Patty, C. Wayne
Foundations of topology
PWS Publishing, 1993
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Siebert, Eleanor D.
Foundations of chemistry
McGraw-Hill, 1982
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Beiser, Arthur
The foundations of physics
Addison-Wesley, 1964
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Scheidegger, Adrian E.
Foundations of geophysics
Elsevier, 1976
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