Hanapi, Zaliza, et al. “TINJAUAN AWAL KEPERLUAN KAJIAN KEBOLEHPASARAN GRADUAN OKU BERMASALAH PENDENGARAN”. Online Journal for TVET Practitioners, vol. 3, no. 2, Sept. 2018, https://journal.uthm.edu.my/index.php/oj-tp/article/view/4849.