डॉ. सुमन. ईशोपनिषद् : एक दार्शनिक विश्लेषण. Kavya Setu, [S. l.], v. 2, n. 1, p. 1–9, 2026. Disponível em: https://kavyasetu.com/index.php/j/article/view/120. Acesso em: 5 feb. 2026.