Sakhir, Abbas Alwi, and Rawnak Khalid Mahmoud. “The Effect of Nano-Particles Concentration AL2O3 on the Performance in Compression Refrigeration System”. Technium: Romanian Journal of Applied Sciences and Technology 3, no. 4 (June 17, 2021): 67–80. Accessed April 17, 2026. https://www.techniumscience.com.techniumscience.pluscommunication.eu/index.php/technium/article/view/3808.