AN EXPLORATORY STUDY ON THE SESSIONAL ALGAL FLORA AND PHYSICO CHEMICAL CHARACTERISTICS OF RIVER YAMUNA IN DISTRICT BAGHPAT (U.P.) . pijems [Internet]. 2025 Dec. 28 [cited 2026 Apr. 16];1(2):26-31. Available from: https://pijems.com/index.php/pijems/article/view/11