@book{750,
	author = {SETH SOVONG},
	title = {Effect of urea rate on growth of green mustard hydroponic condition during the early rainy season,(ឥទ្ធិពលនៃកំរិតជីអ៊ុយរ៉េ លើដំណាំស្ពៃខៀវដំាក្នុងលក្ខខណ្ឌសូលុយស្យុង នៅដើមរដូវវស្សា)},
	publisher = {RUA },
	year = {2005},
	address = {phnom penh }
}