ENHANCEMENT OF SENSITIVITY, DETECTION RANGE, AND DETECTION LIMIT USING GA METHOD POTENTIOMETRIC BIOSENSOR WITH UREASE ENZYME IMMOBILIZATION TECHNIQUE ON PVA. einstein e-j. [Internet]. 2024 Oct. 7 [cited 2026 Mar. 23];12(3):71-6. Available from: https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/48873