Engkir Sukirman et al. 2021. Analysis of Crystal Structure the BaTiO\(_3\) and ZrO\(_2\)-doped (Bi\({_0.}{_5}\)Na\({_0.}{_5}\))TiO\(_3\) with X-ray Diffraction Techniques Using the Rietveld Method. New Visions in Science and Technology Vol. 3. (Aug. 2021), 86–97. DOI:https://doi.org/10.9734/bpi/nvst/v3/10359D.