Ismoiljon V. Obichayev. “Energy-Efficient Vacuum Generation Fan With Adjustable Blade Angle for Pneumatic Seeders: Design, Analysis, And Experimental Validation”. International Journal of Advance Scientific Research, vol. 6, no. 04, Apr. 2026, pp. 112-25, https://doi.org/10.37547/ijasr-06-04-07.