This author has not been identified. Look up 'Jalal Khan' in GoogleThis author has not been identified. Look up 'Sadiq Ullah' in GoogleThis author has not been identified. Look up 'Usman Ali' in GoogleThis author has not been identified. Look up 'Farooq Ahmad Tahir' in GoogleThis author has not been identified. Look up 'Ildiko Peter' in GoogleThis author has not been identified. Look up 'Ladislau Matekovits' in Google