Pahadi, P.; Adhikari, S.; Kharel, D.; Lamichhane, C. .; Chaube, S. .; Shrestha, M. . Comparative Study of Physico-Chemical Parameters of Karra, Rapti and Samari River Water of Hetauda. Int. Res. Jnl. MMC 2023, 4, 44-48.