ឥទ្ធិពលនៃជីប៉ូតាស្យូមក្លរួលើវិធីសាស្ត្រអនុវត្តផ្សេងៗគ្នាលើដំណាំឆៃថាវ, effective of potassium chloride fertilizer on various of application methods on radish crop. BRAY RAVUTH, ប្រាយ រ៉ាវុធ phnom penh rua 2019 2019 Text xi,42p, https://drive.google.com/file/d/1dWBzMtPcyw5wOEmp9RwHud6sYlcNBdtK/view?usp=sharing