R. M. Radeef, S. M. Raoof, and S. Alqawzaib, “The Effect of Varying Maximum Aggregate Size and Reinforcement Ratio on the Behavior of Reinforced Shear Key Specimens with Normal Steel Under Direct Shear ”, j. adv. sci. eng. technol., vol. 8, no. 1, pp. 1–24, Oct. 2025.