@book{938,
	author = {ONG, PISETH.},
	title = {effect of wood vinegar on nutrient release from cow dung (ឥទ្ធិពលនៃទឹកខ្មេះឈើលើការបញ្ចេញសារធាតុចិញ្ចឹមពីលាមកគោ)},
	publisher = {RUA},
	year = {2009},
	address = {Phnom Penh},
	url = {https://drive.google.com/file/d/1a6fnIC61w6J0f9o22LIzrD9nrjrVJzjF/view?usp=sharing}
}