1. Divakaran PP (2007) The first text book of calculus: Yuktibhāṣā. Journal of Indian Philosophy. 35:417
2. Pillai SK (1958) Tantrasaṅgraha of Nīlakaṇṭha with the Prose Commentary Laghuvivṛtti by Śaṅkara Vāriyar, Ed., Trivandrum Sanskrit Series no.188 Trivandrum Sarma KV (1977) Tantrasaṅgraha with the commentary Yuktidīpikaā by Śaṅkara Vāriyar, Ed., V.V.B. Institute, Panjab University, Hoshiarpur
3. Ramasubramanian K. and Sriram MS. Tantrasaṅgraha of Nīlakaṇṭha Somayaājī, Translation with explanatory notes, in press
4. Ramasubramanian K, Srinivas MD, and Sriram MS (1994) ‘Modification of the earlier Indian planetary theory by the Kerala astronomers (c.1500 AD) and the implied heliocentric picture of planetary motion’, Current Science, 66, 784; for details see Vol.II of Ga-yukti-bhāṣā
5. Ramavarma (Maru) Tampuran HH, and Akhileswarayyar AR (1948) Yuktibhāṣā, Eds, Mangalodayam Ltd. Thrissur