Zhussupbekov, Askar Zh., et al. “THE EXPERIENCE DIFFERENT OF PILING TESTING ON PROBLEMATICAL SOIL GROUND OF ASTANA, KAZAKHSTAN”. International Journal for Computational Civil and Structural Engineering, vol. 14, no. 4, Dec. 2018, pp. 158-71, doi:10.22337/2587-9618-2018-14-4-158-171.