Grianggai Samseemoung และ Kiattisak Sangpradit. (2014) Design and Fabrication of High Performance Brassica alboglabraVegetable Seeder for Seeding Trays. <i>Thai Agricultural Research Journal</i>, <i>32</i>(2), 178-187.Grianggai Samseemoung และ Kiattisak Sangpradit. "Design and Fabrication of High Performance Brassica alboglabraVegetable Seeder for Seeding Trays". Thai Agricultural Research Journal 32 (2014):178-187.Grianggai Samseemoung และ Kiattisak Sangpradit. Design and Fabrication of High Performance Brassica alboglabraVegetable Seeder for Seeding Trays. Department of Agriculture:ม.ป.ท. 2014.