Mr. U.V.S.Seshavatharam, and Mr. U.V.S.Seshavatharam. “Hubble Volume, Cosmic Variable Proton Mass and the CMB Radiation Energy Density”. Global Journal of Science Frontier Research 12, no. A5 (March 15, 2012): 23–28. Accessed May 3, 2024. https://journalofscience.org/index.php/GJSFR/article/view/399.