Abd Razak, Azli, Muhamed Azly Abdul Aziz, Ahmad Abidi Jaafar, and Mohd Faizal Mohamad -. “Energy Performance Analysis of Variable Refrigerant Flow System Retrofit: A Building Consumption Comparison Study”. Journal of Applied Engineering Design and Simulation 5, no. 1 (April 25, 2025): 75-86. Accessed April 26, 2025. https://jaeds.uitm.edu.my/index.php/jaeds/article/view/92.