SUBEDI, Tek Raj; SHAKYA, Shree Raj; BHATTARAI, Sudip. Innovations in Toroidal Propellers and Ultra-Low-Head Turbines: Applications, Performance, and Future Prospects. Journal of Engineering Issues and Solutions, [S. l.], v. 4, n. 1, p. 267–281, 2025. DOI: 10.3126/joeis.v4i1.81583. Disponível em: https://nepjol.info/index.php/joeis/article/view/81583. Acesso em: 7 dec. 2025.