C. Xue, P. K. Nitiasih, . N. N. . Padmadewi, and N. W. S. Mahayanti, “Fostering EFL Oral Fluency through Lightweight AI Feedback in Literature-Based Speaking Tasks: A Quasi-Experimental Study in Chinese Higher Education”, PIJED, vol. 4, no. 2, pp. 1673–1690, Dec. 2025.