indriani, devi, helga dwi fahyuan, Mardian Peslinof, and ngatijo ngatijo. “UJI UV-VIS LAPISAN TiO2 N2 UNTUK MENENTUKAN BAND GAP ENERGY”. JOURNAL ONLINE OF PHYSICS 3, no. 2 (November 13, 2018): 6–10. Accessed April 7, 2025. https://mail.online-journal.unja.ac.id/jop/article/view/5142.