A.S. Shera ( Volume 49, No. 9, September, 1999, Page 206-211 )
G. Rafique ( Volume 49, No. 9, September, 1999, Page 206-211 )
K.I. Ahmed ( Volume 49, No. 9, September, 1999, Page 206-211 )
S. Baqai ( Volume 49, No. 9, September, 1999, Page 206-211 )
I.A. Khan ( Volume 49, No. 9, September, 1999, Page 206-211 )
H. King ( Volume 49, No. 9, September, 1999, Page 206-211 )
December 1999, Volume 49, Issue 12
ERRATA
The name of the third author, viz: K.I. Ahmed may be corrected to read as l.A. Khwaja.
Also add the following lines, at the end of article, before References:
Acknowledgements
We would like to thank Prof. M. Kabir and Dr. Shazia Sanaan for their help during the survey.
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