Qaisar, Sara, Rakhshanda Kaleem, Muhammad Farooque, and Aiul Haq. “?DETERMINATION OF THE THICKNESS OF GOLD LAYER”. Biological Sciences - PJSIR 44, no. 3 (June 18, 2001): 189–190. Accessed July 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1920.