Nur Faraihan Zulkefli, Nurhayati Mohd Nur. 2020. “DEVELOPMENT OF OPEN-CIRCUIT SMALL-SCALE WIND TUNNEL- AIRFOIL VALIDATION AND AERODYNAMIC EFFICIENCY”. International Journal of Advanced Science and Technology 29 (6s), 1823 -28. http://sersc.org/journals/index.php/IJAST/article/view/9343.