M. R. Kamarulzaman and M. F. Sies, “Plate Heat Exchanger Efficiency”, rpmme, vol. 6, no. 1, pp. 209–215, Sep. 2025, Accessed: Mar. 12, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/18802