@mastersthesis {51,
	title = {An Ethnobotanical Study of Karen at Ban Yang Pu Toh and Ban Yang Thung Pong, Chiang Dao District, Chiang Mai Province},
	year = {2003},
	school = {Chiang Mai University},
	type = {Independent Study},
	author = {Wittaya Pongamornkul,}
}
