Madhusudan Penna, Yogasiddhāntacandrikā of Nārāyaṇatīrtha: A Study, Parimal (New Delhi 2004), in 304 pages. Based on the author's doctoral dissertation at Osmania University (1996).
Ko Endo, The Works and Flourishing Period of Nārāyaṇa Tīrtha, the Author of the Yogasiddhāntacandrikā, Saṃbhāṣā, Nagoya Studies in Indian Culture and Buddhism, vol. 14 (1992?), pp. 41-60.
