I. A. HALEPOTO, B. A. LAGHARI, R. H. MARI, A. K. RAJPAR, and I. A. SHAIKH. 2021. “NBP/NPD A New Air Stable Solid Organic Semiconductor UV Photocathode”. Sindh University Research Journal - SURJ (Science Series) 53 (2). https://sujo.usindh.edu.pk/index.php/SURJ/article/view/3948.