Ahmad N, Radin Umar R, Halim I, Mohamed M, Jamli MR, Baharudin MS, Hamid M. Evaluation of Menu Hierarchy Display Types in Self-Checkout System: Effects on Human Performance. JAMT [Internet]. 2018May31 [cited 2025Jul.6];12(1(1):371-82. Available from: https://ojsdemo.utem.edu.my/jamt/article/view/4006