“Analysis of Item Difficulty Levels and Differentiating Power of TOAFL Questions at KH. Abdul Wahab Hasbullah University Jombang: Analisis Tingkat Kesukaran dan Daya Pembeda Butir Soal TOAFL di Universitas KH. A. Wahab Hasbullah Jombang”, EDULAB, vol. 9, no. 2, pp. 178–190, Dec. 2024, doi: 10.14421/edulab.2024.92.01.