Richard King,

Indian Philosophy: An Introduction to Hindu and Buddhist Thought,

Edinburgh: Edinburgh University Press, 1999.

J. N. Mohanty,

Classical Indian

New York: Rowman and Littlefield, 2000.

More specialized:

Wilhelm Halbfass,

On Being and What There Is: Classical Vaiśeşika and the History of Indian Ontology,

Albany, NY: State University of New York

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