N. D. Mohd Said, M. Z. Sahdan, and F. Adriyanto, “Effects of Structural, Electrical and Raman Properties of Al-Doped TiO2 Thin Films Acquired by Sol-gel Spin Coating Method”, Politeknik & Kolej Komuniti Journal of Engineering and Technology, vol. 9, no. 2, pp. 87–97, Nov. 2024, Accessed: Dec. 22, 2024. [Online]. Available: https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/666