Najaf, A.R., Permatasari, R. and Sakti, C. 2024. Evaluating the Usability of a Book Stock and Sales Recording Android App: System Usability Scale (SUS), Heuristic Evaluation, and Maze Tool Insights. Journal of Information Systems and Informatics. 6, 3 (Sep. 2024), 1774-1789. DOI:https://doi.org/10.51519/journalisi.v6i3.829.