Nazar Nadhim, B. et al. 2023. EFFECT OF USING MIRRORS ON THE EFFICIENCY OF SILICON SOLAR CELL TEXTURED WITH TRIANGULAR GROOVES BY USING ZEMAX . Journal of Engineering and Sustainable Development. 22, 2 (Apr. 2023), 63–72. DOI:https://doi.org/10.31272/jeasd.2018.2.50.