TAUFIQ SUBAGIO, R.; FAUZAN, A. A.; Rafi`M.; RAMADHAN, B. T.; SURACHMAN, A. Design and Usability Evaluation of an Android-Based Point of Sales Application Using Goal-Directed Design. Jurnal Sistem Cerdas, v. 9, n. 1, p. 131 - 143, 6 May 2026.