@book{703,
	author = {SAP, SOTHUN.},
	title = {Effect of urea levels on growth of celery cabbage under hydroponic condition, (ឥទ្ធិពលនៃកំរិតអ៊ិយរ៉េលើការលូតលាស់ដំណាំស្ពៃចង្កឺះដាំក្នុងលក្ខខណ្ឌ័សូលុយស្យុង)},
	publisher = {RUA},
	year = {2005},
	address = {Phnom Penh}
}