https://iri.aiou.edu.pk/wp-content/uploads/2017/05/Eng.213-24-4.pdf/wp-content/uploads/2017/05/Eng.213-24-3.pdf/wp-content/uploads/2017/05/Eng.213-24-2.pdfhttp://g/wp-content/uploads/2017/05/Eng.213-24-1.pdhttp://g/wp-content/uploads/2017/05/Eng.213-24.doسید راشد علی، سید حامد شاہ
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