kartina R, Arif Fadillah, Rudiansyah. IMPLEMENTATION OF THINKING DESIGN FOR OPTIMIZING THE UI/UX OF THE ORDERING CHATBOT AT WARUNG PEMPEK MANG HANIF: IMPLEMENTATION OF THINKING DESIGN FOR OPTIMIZING THE UI/UX OF THE ORDERING CHATBOT AT WARUNG PEMPEK MANG HANIF. j. Health. appl. sci. and. technol. [Internet]. 2025 Sep. 30 [cited 2026 May 2];3(2):97-106. Available from: http://jhast.ikestmp.ac.id/index.php/jhast/article/view/91