Liew Hui Fang, Rosemizi Abd Rahim, Muhammad Izuan Fahmi, Junita Mohd Nordin, Aini Syuhada Md Zain. Review of Active Circuit and Passive Circuit Techniques to Improve the Performance of Highly Efficient Energy Harvesting Systems. J. Adv. Res. Appl. Sci. Eng. Tech. [Internet]. 2023 Jul. 10 [cited 2024 Nov. 21];31(1):271-90. Available from: https://semarakilmu.com.my/journals/index.php/applied_sciences_eng_tech/article/view/1884