Rosziati Ibrahim, Noor Azah Samsudin, Norhalina Senan, and Muhammad Aamir, Object-Oriented Programming and Data Analysis using Java. Penerbit UTHM, 2021. Accessed: Jul. 18, 2024. [Online]. Available: https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/23