Siti Arpah Noordin, Mad Khir Johari Abdullah Sani, Noor Zaidi Sahid, Jamiah Baba, Tamara Adriani Salim. “Usability Evaluation of a Ubiquitous Library Portal in Malaysia”. International Journal of Advanced Science and Technology 29, no. 3 (March 30, 2020): 13764 - 13778. Accessed May 6, 2024. http://sersc.org/journals/index.php/IJAST/article/view/31719.