Prayogi, S., Y. Cahyono, D. Hamdani, and Darminto. “Effect of active layer thickness on the performance of amorphous hydrogenated silicon solar cells”. Engineering and Applied Science Research, vol. 49, no. 2, Sept. 2021, pp. 201-8, https://ph01.tci-thaijo.org/index.php/easr/article/view/243553.