@book{4615,
	author = {OT, CHANDY.},
	title = {Study on powder tiller's wheel slip when tillage operation, ការសិក្សាលើភាពទួងតង់គោយន្តពេលដំណើរការភ្ជួរដី},
	publisher = {RUA},
	year = {2001},
	address = {Phnom Penh}
}