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fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References

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Page 1: fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References
Page 2: fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References
Page 3: fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References
Page 4: fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References
Page 5: fac.ksu.edu.safac.ksu.edu.sa/sites/default/files/96_is_it_necessary_to...I am very greatful to Prof. Abdurrahman for advice and to Mr. Moazamullah for typing the manuscnpt. References