WAN, B.; SUN, J.; DU, H.; WAN, J.; KONG, X.; CHENG, Y. An <i>q</i>-Rung Orthopair Trapezoidal Fuzzy Number Decision-Making Method for Online Learning Engagement Assessment. Contemporary Mathematics , [S. l.], v. 7, n. 2, p. 1833–1859, 2026. DOI: 10.37256/cm.7220268156. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/8156. Acesso em: 15 jun. 2026.