Saragih, J. M., T. A. Sianturi, and A. Siahaan. “Design and Construction of A Vortex Type Turbine Driving A 100 Watt Generator”. International Journal of Technology and Education Research, Vol. 4, no. 03, July 2026, pp. 437-55, doi:10.63922/ijeter.v4i03.5346.