Ajai Kumar Singh 2025. Effect of Exposure and Withdrawal of Disodium Arsenate Heptahydrate on Gills of Highly Nutritious Catfish Clarias batrachus.: A Histopathology and Histochemical Study. Contemporary Research and Perspectives in Biological Science Vol. 10. (Feb. 2025), 17–34. DOI:https://doi.org/10.9734/bpi/crpbs/v10/4149.