Nawawi MAH, Baharom MNR. A Study of Implementation Fresnel Lens with Tracking Positioning Ability to Achieve Optimum Concentrated Heat on the Solar Heater Element. peat [Internet]. 2024 Nov. 25 [cited 2026 Apr. 7];5(2):225-34. Available from: https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/17252