Ikechiamaka, F. N., C. Okpala, and A. Lawal. “DESIGN AND IMPLIMENTATION OF A LOW COST HEARING AID DEVICE”. FUDMA JOURNAL OF SCIENCES 1, no. 1 (March 12, 2023): 115 - 122. Accessed April 3, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1233.