Riazuddin 2006. Fifty years of parity violation and Salam’s contribution. NCP 5th Particle Physics Workship: Prof. Abdus Salam – 10th Death Anniversary (Islamabad, Pakistan: National Center for Physics): 1–32. Retrieved 2010. Archived 2016-03-03 at the Wayback Machine
Riazuddin 2006. Fifty years of parity violation and Salam’s contribution. NCP 5th Particle Physics Workship: Prof. Abdus Salam – 10th Death Anniversary (Islamabad, Pakistan: National Center for Physics): 1–32. Retrieved 2010. Archived 2016-03-03 at the Wayback Machine