Muhammad Tayyab, Engr. Shahid Ayaz, Syeda Mahnoor Bukhari and Ghulam Yasin 2026. DEVELOPMENT OF PEROVSKITE-BASED PHOTOVOLTAIC MATERIALS FOR HIGH-EFFICIENCY AND LOW-COST SOLAR ENERGY APPLICATIONS IN PAKISTAN. Spectrum of Engineering Sciences. 4, 3 (Mar. 2026), 156–166.