Iskandar Shah Ishak, Shuhaimi Mansor, Tholudin Mat Lazim, Shabudin Mat, Mohd Zarhamdy Md. Zain, Rizal Effendy Mohd Nasir, and ZurriatiMohd Ali. “Experimental Work on Unsteady Helicopter Rotor Hub Wakes”. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, vol. 65, no. 2, Mar. 2024, pp. 314-23, https://semarakilmu.com.my/journals/index.php/fluid_mechanics_thermal_sciences/article/view/3715.