Bushra, S.; H.Memon, H.; Nighat, A.; S.Chowdhry, B. Design of Robust & Predictive Controller for Altitude Stabilization and Trajectory Tracking of a Quad-Copter. IJET 2018, 7 (4.38), 416-421. https://doi.org/10.14419/ijet.v7i4.38.24594.