ASSYIFAA, G. A. N.; NURZAKIYAH, E.; HASANAH, L.; NOVIA, H. Rasch Analysis of Creative Thinking Skill on Optical Instrument (CTSOI) 11th Grade Students Sundanese Tribe: a Case Study. Radiasi : Jurnal Berkala Pendidikan Fisika, v. 14, n. 1, p. 51-61, 30 Apr. 2021.