Sitorus, Agustami, Muhamad Muslih, Oscar Haris, Dewi Sartika Thamren, and Ramayanty Bulan. “Performance of Solar Concentrator With and Without Mirror Coating Paper”. Trends in Sciences 19, no. 3 (January 20, 2022): 2171. Accessed May 3, 2024. https://tis.wu.ac.th/index.php/tis/article/view/2171.