Rosziati Ibrahim, Noor Azah Samsudin, Norhalina Senan, and Muhammad Aamir. Object-Oriented Programming and Data Analysis Using Java. Penerbit UTHM, 2021. Accessed April 9, 2026. https://penerbit.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/23.