Chee-Ming Chan, and Muhammad Halim Ab. Raman. “SCREW-IN SOIL NAIL FOR SLOPE REINFORCEMENT AGAINST SLIP FAILURE: A LAB-BASED MODEL STUDY”. GEOMATE Journal, vol. 12, no. 29, Jan. 2017, pp. 148-55, https://geomatejournal.com/geomate/article/view/878.