@mastersthesis {133,
	title = {Taxonomy of fern and fern allies at Phuhin Rongkla National Park, Phitsanulok Province},
	volume = {Master{\textquoteright}s Degree},
	year = {2002},
	school = {Chulalongkorn University},
	author = {Wilawan Rattanathirakul,}
}
