Rahmawati, Saparudin, and Teuku Andi Fadly. “English Effect of Activated Variations Carbon from Oil Palm Empty Fruit Bunch to Solar Cell Efficiency P-N Junction Layer Cu2O-TiO2.”. Jurnal Inotera 5, no. 1 (May 14, 2020): 44-49. Accessed April 23, 2026. https://inotera.poltas.ac.id/index.php/inotera/article/view/99.