@book{69064,
	author = {Suttirat Rujikietgumjorn and Nuchwana Luanganggoon and Khon Kaen University.},
	title = {Language research for teachers :},
	publisher = {Khon Kaen University,},
	year = {2010},
	address = {Khon Kaen :},
	edition = {1st ed}
}