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- Buku AudioDiscourse on InequalityJean-Jacques Rousseau
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- Buku AudioOn Human NatureArthur Schopenhauer
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- Buku AudioThe Black and the WhiteVoltaire
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- Buku AudioThe Essays of Arthur SchopenhauerArthur Schopenhauer
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- Buku AudioThe Man of Forty CrownsVoltaire
- Buku AudioThe Basis of MoralityArthur Schopenhauer
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- Buku AudioCreative ImaginationWarren Hilton
- Buku AudioEmerson's Essays Volume 1Ralph Waldo Emerson
- Buku AudioUtilitarianismJohn Stuart Mill
- Buku AudioThe Conduct of LifeRalph Waldo Emerson
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- Buku AudioDiscourse on the MethodRené Descartes
- Buku AudioOn LibertyJohn Stuart Mill
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- Buku AudioThe Secret of Mental EfficiencyWarren Hilton
- Buku AudioEmerson's Essays Volume 2Ralph Waldo Emerson
- Buku AudioThe Dawn of DayFriedrich Nietzsche
- Buku AudioChina, Japan and the U.S.A.John Dewey
- Buku AudioLife of BuddhaAsvaghosha Bodhisattva
- Buku AudioPoliticsAristotle
- Buku AudioRhetoricAristotle
- Buku AudioMetaphysicsAristotle
- Buku AudioPhysicsAristotle
- Buku AudioTopicsAristotle