@book{1097,
	author = {PHEAP, SAMBO.},
	title = {Effect of direct seedling mulch-based cropping system on nitrogen content the soil ឥទ្ធិពលប្រព័ន្ធដាំដុះលើដំណាំគម្របដីលើបរិមាណអាសូតក្នុងដី},
	publisher = {RUA},
	year = {2010},
	address = {Phnom Penh},
	url = {https://drive.google.com/file/d/1a8ghY4ZE4s9uToqUGchptWEUrlj2_C5n/view?usp=sharing}
}