APA Style
Raana, Irfan Mahmud, صغرا مہدی. ().
Economic System under Umar the Great. .
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Chicago Style
Raana, Irfan Mahmud, صغرا مہدی.
Economic System under Umar the Great..
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MLA Style
Raana, Irfan Mahmud, صغرا مہدی.
Economic System under Umar the Great..
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.
Turabian Style
Raana, Irfan Mahmud, صغرا مہدی.
Economic System under Umar the Great..
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