“Photoelectron Extraction Efficiency of N,N?-Bis(3-methylphenyl)-N,N?-diphenylbenzidine (TPD) in CH4 and Ar+ CH4 Mixtures” (2021) Sindh University Research Journal - SURJ (Science Series), 53(1). Available at: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/3636 (Accessed: 4 October 2026).