Ahmed M, Ibrahim AK. Effect of Changing Several Factors and Variables on the Thermal Performance of a Photovoltaic/Thermal Collector. J. eng. sustain. dev. [Internet]. 2026 Jul. 1 [cited 2026 Jul. 2];30(4):487-95. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2343