Nwanya, A., & Okeke, O. (2018). Using Dynamic Cone Penetrometer Tester to Determine CBR and Bearing Pressures of Subsurface Soils in Parts of Owerri, Southeastern Nigeria. European Journal of Engineering Research and Science, 3(12), 1-7. https://doi.org/10.24018/ejers.2018.3.12.973