Lightweight Retrieval-Augmented Generation Based on Google Sheets as a Dynamic Knowledge Base for the Maritime BMKG Teluk Bayur Shipping Safety Chatbot. JITU [Internet]. 2026 May 31 [cited 2026 Jul. 26];9(1):27-36. Available from: //journal.mmtc.ac.id/index.php/jitu/article/view/6089