Hamidi, Saad Tami, Jamal Abdul-Kareem Mohammed, and Laith Mohsen Reda. “Thermal Performance Analysis of Parabolic Trough Solar Concentrator With Helical Tube Receiver”. Al-Nahrain Journal for Engineering Sciences 21, no. 3 (September 1, 2018): 374–383. Accessed July 2, 2026. https://nahje.com/nahje/article/view/459.