B. K. Matilal,

Logic, Language and Reality,

Delhi: Motilal Banarsidass, 1985.

الفصل الخامس

E. Frauwallner,

History of Indian

Vol. II, Delhi: Motilal Banarsidass, 1973.

M. Hiriyanna,

The Essentials of Indian Philosophy,

London: George Allen & Unwin, 1985.

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