Sultan, M. M. (1975). Bench-mark survey of Kotwali and Sherpur Thana of Bogra District. Regional Academy for Rural Development.
Chicago-viite (17. p.)Sultan, Manzurul Mahmood. Bench-mark Survey of Kotwali and Sherpur Thana of Bogra District. Bogra: Regional Academy for Rural Development, 1975.
MLA-viite (8. p.)Sultan, Manzurul Mahmood. Bench-mark Survey of Kotwali and Sherpur Thana of Bogra District. Regional Academy for Rural Development, 1975.
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