<https://pahar.in/pahar/1867-general-report-of-revenue-survey-operations-of-nw-frontier-punjab-for-season-1866-67-s-pdf/>
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<https://pahar.in/pahar/1867-general-report-of-revenue-survey-operations-of-nw-frontier-punjab-for-season-1866-67-s-pdf/>