Nora Uzatul Jannah, Emilia Rahajeng Larasati, and Dhian Supardam. “The Effect of Refresher Training on Air Traffic Controllers Performance at Jakarta ACC Unit”. International Journal Of Humanities Education and Social Sciences (IJHESS), vol. 5, no. 4, Feb. 2026, doi:10.55227/ijhess.v5i4.2229.