Mesfin Tafesse, Sakda Intaravichai, Banyat Saitthiti, Thanya Kiatiwat. The Optimum Design Parameters in Terms of Total Specific Energy Requirements for the Rotary Blade Power Tiller under Unsaturated Sandy Clay Loam Soil Condition. Agr. Nat. Resour. [internet]. 2007 Dec. 30 [cited 2026 Sep. 28];41(4):775-81. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/244323