Irwan Mahazir Ismail, Mohd Erfy Ismail, Mohd Khairul Fahmi Haron, and Zulhelmizan Muhamad. Pembangunan Pembelajaran Mobile Secara Kendiri Dan Kolaboratif (iOS Dan Andriod). Penerbit UTHM, 2019. Accessed May 7, 2024. https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/230.