Sulistianingsih, Indri, Ramadhanu Ginting, Ade Rizka, and Brema Arihta Siregar. 2026. “ Design of NLP-Based Chatbot for Academic Services at Politeknik Negeri Medan”. Electronic Integrated Computer Algorithm Journal 3 (2):59-67. https://doi.org/10.62123/enigma.v3i2.163.