“PHOTOVOLTAIC/THERMAL/(PV/T)/SYSTEM/DIRECT/CONTACT/TYPE:/A/REVIEW”. Journal of Engineering and Sustainable Development 26, no. 5 (September 1, 2022): 53–67. Accessed April 27, 2024. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1880.