Suparman, Achmad Rante, et al. “Empowering Teachers in Item Response Theory Analysis Using R Studio in Manokwari”. Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang, vol. 10, no. 1, Feb. 2025, doi:10.26905/abdimas.v10i1.14258.