A.SARANYA, SOURABH VITTHAL GAIKWAD. CONSTRAINTS ON MODIFIED GRAVITY THEORIES FROM COSMIC MICROWAVE BACKGROUND AND BARYON ACOUSTIC OSCILLATION DATA. International Journal of Engineering and Technology for Sustainable Development [IJETSD], [S. l.], v. 1, n. 1, p. 8–14, 2026. Disponível em: https://berylonline.org/index.php/ijetsd/article/view/2. Acesso em: 28 jul. 2026.