Askar Zhussupbekov, Assel Tulebekova, Talal Awwad, Turlybek Mussabayev, and Akmaral Tleubayeva. “GEOTECHNICAL SPECIFICATION OF AMERICAN AND KAZAKHSTAN STANDARDS IN PILE TESTING”. GEOMATE Journal 17, no. 63 (April 24, 2019): 157–163. Accessed June 25, 2022. https://geomatejournal.com/geomate/article/view/2160.