Yan Puspitarani and Yenie Syukriyah (2020) “Utilization of Optical Character Recognition and Text Feature Extraction to Build a Workforce Complaint Database”, Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 4(4), pp. 704 - 710. doi: 10.29207/resti.v4i4.2107.