A. Zulkefle, M., R. A. Rahman, M. Rusop, W. F. H. Abdullah, and S. H. Herman. “Porous TiO2 Thin Film for Egfet PH Sensing Application”.
International Journal of Engineering and Technology 7, no. 4.42 (December 29, 2018): 112–114. Accessed May 30, 2025.
https://mail.sciencepubco.com/index.php/IJET/article/view/25690.