Sitoresmi, Mustikaning, and Wella Wella. 2020. “Chatbot Kantor Pelayanan Pajak Pratama Cikupa Pada Platform Line”. Ultima InfoSys : Jurnal Ilmu Sistem Informasi 11 (1), 33-39. https://doi.org/https://doi.org/10.31937/si.v9i1.1247.