Varunee Kosanlavit. 2007. An investigation into the effectiveness of the mini English program in Nakhon Ratchasima province. Field of Study English, Khon Kaen University;
Varunee Kosanlavit. (2007) An investigation into the effectiveness of the mini English program in Nakhon Ratchasima province . Khon Kaen University/Khon Kaen.
Varunee Kosanlavit. An investigation into the effectiveness of the mini English program in Nakhon Ratchasima province. . Khon Kaen:Khon Kaen University, 2007.
Varunee Kosanlavit. (2007) An investigation into the effectiveness of the mini English program in Nakhon Ratchasima province . Khon Kaen University/Khon Kaen.