Ruangpratyakul, Sornrin, Poosit Kowglah, Latthapon Promking, and Lakkana Pitak. 2025. “The efficiency of the broadcast seeder combined with the vertical disk plows”. Agricultural and Biological Engineering 2 (4):137-44. https://ph04.tci-thaijo.org/index.php/abe/article/view/11121.