Evaluation of Naca 4412 and Clark-Y Aerofoil Based Drone Propellers' Efficiencies Fabricated Using Additive Manufacturing. - Muhamad Nazri, Muhammad Nor Ikmal; Basri, Adi Azriff; Abdullah, Mohd Na'im; Mustapha, Faizal; Bajuri, Farid; Basri, Ernnie Illyani; Johari, Nasrul Hadi (International Journal of Automotive & Mechanical Engineering, 2025)