E. P. Budiana, R. Firmanda, E. R. I. Mahmoud, and Triyono, “Effect of tool rotation direction, pin overlap, and pin shape on material flow in one-step double-acting friction stir welding of stainless steel: A Modeling study”, Mech. Eng. for Soc. and Ind., vol. 6, no. 1, pp. 146–164, May 2026, doi: 10.31603/mesi.13695.