Jay K Patel, and J.D.Patel. “Experimental Investigation of Double Pass Solar Air Heater Using Multiple Aluminium Obstructions”. International Journal of Advance Engineering and Research Development (IJAERD) 3, no. 10 (October 25, 2016): 41–43. Accessed June 18, 2025. https://www.ijaerd.org/index.php/IJAERD/article/view/1715.