Abbas, N., Akhter, J.Q., Khan, G., Alam, M., Khan, H., Bano, Y., Alam, M., Rehman, S. ur and Khan, A. 2019. A Relationship of Physical Properties with Rock Strength Under Specific Geological Conditions for Limestone and Marble, Khyber Region: A Relationship of Physical Properties with Rock Strength Under Specific Geological Conditions for Limestone and Marble, Khyber Region. International Journal of Economic and Environmental Geology. 10, 4 (Jan. 2019), 14–18. DOI:https://doi.org/10.46660/ijeeg.v10i4.385.