S. Hanoum, S. K. Sa'adah, I. K. Ratih, J. Rofifah, U. Nikmah, and M. Shubbak, “Evaluating the Efficiency and Productivity Effects of Cross-Border Acquisitions Using Data Envelopment Analysis (DEA)”, IJBMTS, vol. 2, no. 2, pp. 107–118, Jan. 2026.