“Comments on the paper ‘How to calculate crystallite size from x-ray diffraction (XRD) using Scherrer method’ by Siti Fatimah et al. published in ASEAN Journal of Science and Engineering 2 (2022) 65” (2023) ASEAN Journal of Science and Engineering, 3(3), pp. 301–304. doi:10.17509/ajse.v3i3.56905.