Yanti, R. M., I. Santoso, and L. H. Suadaa. “Application of Named Entity Recognition via Twitter on SpaCy in Indonesian (Case Study : Power Failure in the Special Region of Yogyakarta)”. Indonesian Journal of Information Systems, vol. 4, no. 1, Aug. 2021, pp. 76-86, doi:10.24002/ijis.v4i1.4677.