HASSIDOU, SAIDOU, MANZOLA ABDOUSSALAM, ABDOULAYE MOUHAMADOU HADI, HAMZAOUI AHMED HICHEM, and MNIF ADEL. 2019. ‚ÄúCONTRIBUTION TO THE STUDY OF THE POLLUTION OF NIGER RIVER WATERS: EVALUATION OF PHOSPHORUS, NITROGEN AND DISSOLVED OXYGEN CONCENTRATIONS‚ÄĚ. Journal of Basic and Applied Research International 25 (6), 295-300. https://www.ikpresse.com/index.php/JOBARI/article/view/4798.