Al - Kaisi, A., Abbawi, Z. (2005). Angle of Friction in Reinforced Earth. Alustath, 24(5), 499-506. doi: 10.30684/etj.24.5.3
Awf A. Al - Kaisi; Zeena W. Abbawi. "Angle of Friction in Reinforced Earth". Alustath, 24, 5, 2005, 499-506. doi: 10.30684/etj.24.5.3
Al - Kaisi, A., Abbawi, Z. (2005). 'Angle of Friction in Reinforced Earth', Alustath, 24(5), pp. 499-506. doi: 10.30684/etj.24.5.3
Al - Kaisi, A., Abbawi, Z. Angle of Friction in Reinforced Earth. Alustath, 2005; 24(5): 499-506. doi: 10.30684/etj.24.5.3