Syed Dawilah El-Edrus, Hussain Othman, and Ahmad Esa, Tun Abdullah Hj. Ahmad Badawi : Bapa Pembangunan Modal Insan Negara. Penerbit UTHM, 2010. Accessed: Jul. 19, 2024. [Online]. Available: https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/282