Volume 29, Issue 1, 2006, Pages 1-8
S. S. Hasan; Nisar ur Rahman; Khalid Hussain; S. Atif Raza
Volume 27, Issue 2, December 2004, Pages 325-330
Syed Saeed-ul- Hassan; Khalid Hussain; Syed Atif Raza; Nisar- ur- Rehman