“Heat Transfer Enhancement of Circular Heat Pipe with Al2O3 BN/Water Hybrid Nanofluid”, Int. J. Curr. Eng. Technol., vol. 1, no. 4.Special, pp. 138–143, Mar. 2016, Accessed: Apr. 26, 2026. [Online]. Available: https://ijcet.evegenis.org/index.php/ijcet/article/view/4185