E. P. Siagian, I. B. . Mochtar, N. E. . Mochtar, and S. S. . Situmeang, “The Effect of Cracked Soil on Slope Stability on the Karo Regency Boundary Road – Panji Sta 26+000, North Sumatra Province”, ISS, vol. 5, no. 1, pp. 139–144., Dec. 2025.