A. ., M. Zuber, S. Md Abdul Khader, S. Kalburgi, E. Illyani Basri, and K. Arifin Ahmad, “Performance of a Monarch Butterfly for Various Flapping Angle”, IJET, vol. 7, no. 4.25, pp. 126–130, Nov. 2018, doi: 10.14419/ijet.v7i4.25.22411.