Mohd Najib, N. ‘Izqa A. ., and S. A. Othman. “Study the Different Concentrations of Hydrochloric and Sulphuric Acid As Dopants For Polyaniline”. Journal of Science and Technology, vol. 14, no. 2, Nov. 2022, pp. 1-7, https://publisher.uthm.edu.my/ojs/index.php/JST/article/view/11254.