Kunaedi, J., A. Samsudin, L. Hasanah, A. Hidiana Aminudin, F. Herliyana Dewi, F. Alfionita Umar, I. Rona Wahyu Astuti, and S. Nurul Mufida. “Developing Diagnostic Test on Geometrical Optics (DT-GO) Concept”. KnE Social Sciences, Vol. 9, no. 8, Apr. 2024, pp. 712–724, doi:10.18502/kss.v9i8.15637.