S. A. Razak, Z. M. Rodzi, F. Al-Sharqi, and N. Ramli, “Revolutionizing Decision-Making in E-Commerce and IT Procurement: An IVPNS-COBRA Linguistic Variable Framework for Enhanced Multi-Criteria Analysis”, Int. J. Econ. Sci., vol. 14, no. 1, pp. 1–31, Apr. 2025, doi: 10.31181/ijes1412025176.