Bontong, Y., N. Pasae, and N. Nitha. “Pengaruh End Cap Terhadap Efisiensi Turbin Angin Savonius Empat Sudu”. Journal of Innovative and Creativity, vol. 4, no. 3, Oct. 2024, pp. 124-31, doi:10.31004/joecy.v4i3.921.