Karki, B.; Subedi, A.; Sigdel, H.; Bartaula, P. Design, Simulation and Performance Evaluation of Vertical Axis Helical Wind Turbine. Jnl Innov. Engin. Educ. 2019, 2 (1), 1-13. https://doi.org/10.3126/jiee.v2i1.36661.