Syahrani, S., A. M. Arnol, C. A. Arafa, F. Azhara, and A. L. P. Silalahi. “Analysis of the Level of Difficulty of Questions in Assessment Tests Based on Literature Review”. EDUCTUM: Journal Research, vol. 5, no. 1, Jan. 2026, pp. 74-78, doi:10.56495/ejr.v5i1.1450.