Bhatt, Jitesh R.Natwariya, Pravin KumarPravin KumarNatwariya2025-09-042025-09-042022-01-01http://repository.iitgn.ac.in/handle/IITG2025/32743ill.; hbk.; 30 cm17330022PhysicsAstronomyDark MatterBaryon-dark MatterBlack Hole21 cm line astronomy and constraining new physicsPh.D.xlv, 150p.Ph.D.123456789/620