Nursulistiyo, Eko and Indratno, Toni Kus and Dwiastuti, Ety and Arifiyanti, Fitria and Puspitasari, Ariati Dina and Abdullah, Nurul Syafiqah Yap and Sukarelawan, Moh.Irma (2022) Per Review Perception Scale of online Learning in the Indonesian Context During the Covid-19 Pandemic: Psychometric Properties Based on the Rasch Model. Universitas Ahmad Dahlan kerjasama PPFI.