To cite package ‘exactGMH’ in publications use: Ningsih T, Aman, Nasrulloh A, Hastuti H, Putri S (2026). _exactGMH: Exact and Permutation-Based Mantel Tests for Differential Item Functioning in Dichotomous and Polytomous Items_. R package version 0.1.0, . A BibTeX entry for LaTeX users is @Manual{, title = {exactGMH: Exact and Permutation-Based Mantel Tests for Differential Item Functioning in Dichotomous and Polytomous Items}, author = {Tri Zahra Ningsih and {Aman} and Ahmad Nasrulloh and Hera Hastuti and Suci Kurnia Putri}, year = {2026}, note = {R package version 0.1.0}, url = {https://CRAN.R-project.org/package=exactGMH}, }