Suparman, A. R., Murtihapsari, M. and Purwati, P. (2025) “Empowering teachers in item response theory analysis using R Studio in Manokwari”, Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang, 10(1). doi: 10.26905/abdimas.v10i1.14258.