@book{9929,
	author = {Puyaoan, Catherine Ariza A. },
	title = {A Comparative study on the antibacterial effect of crude oil and extract of betel nut (Areca catechu L.) },
	year = {2006},
	note = {Thesis (BS Biology) -- Mariano Marcos State University-College of Arts & Sciences, Batac City }
}