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: Aug. 26, 2026. [Online]. Available: https://monograph.uthm.edu.my/index.php/penerbituthm/catalog/book/230