Zulkifli Amin, Iskandar Ridwan, and Muhammad Fahmi Aziz, “Effect of Titanium Dioxide Thickness on Performance of DSSC Solar Cell Using Red Dragon Fruit Dye”, J. Adv. Res. Fluid Mech. Therm. Sc., vol. 96, no. 2, pp. 172–181, Jun. 2022.