@book{1256,
	author = {KEP, SODAMY.},
	title = {Effect of timing of nitrogen utilzation on lettuce ឥទ្ធិពលនៃពេលវេលាប្រើប្រាស់ជីអាសូតលើដំណាំសាលាដ},
	publisher = {RUA},
	year = {2011},
	address = {Phnom Penh}
}