C. W. Huntingdon,

The Emptiness of Emptiness. An Introduction to Early Indian Mādhyamika,

Honolulu: University of Hawaii Press, 1989.

Richard King,

Indian Philosophy: An Introduction to Hindu and Buddhist Thought,

Edinburgh: Edinburgh University Press, 1999.

Thomas A. Kochumuttom,

A Buddhist Doctrine of Experience,

Delhi: Motilal Banarsidass, 1982.

F. Th. Stcherbatsky,

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