J. . Tuilan, P. . Widodo, N. H. P. S. . Putro, I. J. C. Tuerah, and N. W. S. . Mahayanti, “Bibliometric Analysis of CEFR-Based Strategies in University-Level Speaking Instruction”, JoE, vol. 4, no. 1, pp. 3231 –, Jan. 2025.