@book{46789,
	author = {Polit, Denise F and Beck, Cheryl Tatano,},
	title = {Essentials of nursing Research : methods, appraisal,and utilization /},
	publisher = {Lippincott Williams & Wilkins,},
	year = {2006},
	address = {Philadelphia :},
	edition = {6th ed},
	note = {CD-ROM (พยาบาลศาสตร์)}
}