Pramuhadi, G., Daywin, F. J., Mandang, T., & Haridjaja, O. (2011). Study of Optimization of LInear Velocity of Rotary Blade and Tractor Forward Speed Ratio on Soil Pudding of Wet Field Rice. Jurnal Keteknikan Pertanian, 13(3). https://doi.org/10.19028/jtep.013.3.%p