Effects of planting methods on micro nutrient in chinese cabbage, ឥទ្ធិពលនៃវិធីសាស្រ្តដាំដុះទៅលើមីក្រូជីវជាតិនៅក្នុងស្ពៃក្រញាញ់ LON MAKARA; លន់ មករា AGI LON 2014 B451 Or.1 Text ix,35p. https://drive.google.com/file/d/1MzxMovAFBzk11rNYcW4hl_fsHrDEZOMP/view?usp=sharing