Porntip Suntara. 2008. Effects of the use of concept maps on the students' English reading comprehensionPorntip Suntara. Field of Study English, Khon Kaen University;
Porntip Suntara. (2008) Effects of the use of concept maps on the students' English reading comprehensionPorntip Suntara . Khon Kaen University/Khon Kaen.
Porntip Suntara. Effects of the use of concept maps on the students' English reading comprehensionPorntip Suntara. . Khon Kaen:Khon Kaen University, 2008.
Porntip Suntara. (2008) Effects of the use of concept maps on the students' English reading comprehensionPorntip Suntara . Khon Kaen University/Khon Kaen.