Pribadi, F. O., Supahar, and P. Afriwardani. “Certainty of Response Index-Based E-Diagnostics Assisted by Google Forms to Identify Misconceptions in Simple Harmonic Waves”. Journal of Education Research and Evaluation, vol. 7, no. 1, Apr. 2023, pp. 168-74, doi:10.23887/jere.v7i1.56351.