1. Ancient Sources
2. Upanisads: Eighteen Principal Upanisads, Vol. I, ed. V. P. Limaye and R. D. Vadekar. Poona, Vaidik Samsodhana Mandala, 1958.
3. Jaiminiya Brahmana: ed. Raghu Vira and Lokesh Chandra. Delhi: Motilal Banarsidass, 1986.
4. Rangaramanuja. (1) Isakenakathaprasnamundakamandukyanandavallibhrgupanisadah [in Devanagari] ed. Harinarayana Apte. Pune: Anandasrama, 1910. https://archive.org/details/IshaToTaittiriyaVishishtadvaitTeekaHNApte1910/Isha%20To%20Taittiriya%20Vishishtadvait%20Teeka%20HNApte%201910/page/n93/mode/2up Accessed 28 September 2022.
5. ——.(2) Sri Rangaramanuja’s Kathopanishad-Bhashya [in roman script with English translation] ed. K. C. Varadhachari and D. T. Tatacharya. Tirupati: Tirumalai-Tirupati Devasthanam, 1948. https://archive.org/details/UpanisadahRangaramanuja/Kathopanisad_mula_Rangaramanuja-bhasya_mula_English_Tirupati_1948/page/n221/mode/2up Accessed 28 September 2022.