Karl H. Potter (Editor). Encyclopedia of Indian Philosophies. Volume 2: Indian Metaphysics and Epistemology: The Tradition of Nyāya-Vaiśeṣika up to Gangeśa. Delhi: Motilal Banarsidass, 1977, 760 pp.
Harold G. Coward & K. Kunjunni Raja (Editors). Encyclopedia of Indian Philosophies. Vol. 5: The Philosophy of the Grammarians. Delhi: Motilal Banarsidass, 2001, XII, 609 pp.
Karl H. Potter & Sibaljan Bhattacharyya (Editors). Encyclopedia of Indian Philosophies. Vol. 6: Indian Philosophical Analysis. Nyāya-Vaiśeṣika up to Gaṅgeśa and Raghunātha Śiromaṇi. Delhi: Motilal Banarsidass, Reprint 2001, X, 672 pp.
