A. S. Robbani, T. Nurdianto, A. Z. Annafiri, A. M. Haqqy, and I. Irfan, “Tren penelitian dan tantangan penerapan Common European Framework of Reference for Languages (CEFR) di Indonesia ”, Diglosia, vol. 6, no. 4, pp. 1011-1026, Oct. 2023.