Siregar, Nurdin, Nurhabibah Purba, and Motlan Motlan. “DYE SENSITIZED SOLAR CELL (DSSC) MENGGUNAKAN FILM TIPIS ZNO:B DAN EKSTRAK DYE DARI UBI UNGU”. EINSTEIN (e-Journal) 7, no. 1 (February 16, 2019). Accessed October 12, 2025. https://jurnal.unimed.ac.id/2012/index.php/einsten/article/view/12485.