1. Muhammad Aslam Ch. :
Glass & Ceramics Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
2. K. Muhammad Afzal:
Glass & Ceramics Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
3. K. Muhammad Saadet:
Glass & Ceramics Research Centre, PCSIR Laboratories Complex, Lahore, Pakistan
4. C. M. Ahmad:
Chemistry Department, Government College, Lahore, Pakistan