SAPUTRA, Ramadhani Handika; SUCIPTO, Hadi. Implementation of a WhatsApp-based Canteen Menu Chatbot using TF–IDF and cosine similarity: A case study of employees at Matahari Department Store, Sunrise Mall and Mojokerto. Jurnal Pendidikan Teknologi Kejuruan, Padang, Indonesia, v. 9, n. 1, p. 1–20, 2026. DOI: 10.24036/jptk.v9i1.48523. Disponível em: https://jptk.ppj.unp.ac.id/index.php/jptk/article/view/485. Acesso em: 23 apr. 2026.