Ashuvendra Singh, Sunita Danu, Lakshman Singh 2022. SMPN 18 Management Techniques for Landslide Safety Keeping in view Balikpapan City. Mathematical Statistician and Engineering Applications. 71, 4 (Sep. 2022), 2646–2655. DOI:https://doi.org/10.17762/msea.v71i4.822.