“FIELD PULL-OUT EXPERIMENTS OF FLIP-TYPE GROUND ANCHORS DRIVEN IN GROUND OF CLAY AND SAND LAYERS”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 20, no. 78, pp. 93–100, Feb. 2021, Accessed: Apr. 18, 2026. [Online]. Available: https://geomatejournal.com/geomate/article/view/181