ONE-STEP CENTRAL COMPOSITE-DESIGNED OPTIMIZATION FOR LEAD (II) IONS ADSORPTION ONTO PRISTINE AND ACID-MODIFIED ORANGE-PEELS FROM SIMULATED WASTEWATER. FJS [Internet]. 2024 Jun. 30 [cited 2025 Sep. 17];8(3):201-13. Available from: http://162.254.38.185/index.php/fjs/article/view/2499