N.W.F.P. Employees' Social Security Institution. Annual report. N.W.F.P. Employees' Social Security Institution.
Chicago-viite (17. p.)N.W.F.P. Employees' Social Security Institution. Annual Report. Peshawar: N.W.F.P. Employees' Social Security Institution.
MLA-viite (8. p.)N.W.F.P. Employees' Social Security Institution. Annual Report. N.W.F.P. Employees' Social Security Institution.
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