I. Md Isa and S. Ab Ghani, “Determination of glutamate in Food Samples by heterogeneous Membrane with chitosan as ionophore”, J. Sci. Math. Lett., vol. 1, no. 1, pp. 1–10, Jun. 2009, Accessed: Dec. 06, 2025. [Online]. Available: https://ejournal.upsi.edu.my/index.php/JSML/article/view/324