Sirinapa Kijkuakul. (2006) Case studies of teaching and learning about photosynthesis in Thailand : an innovative approach /. Kasetsart University,:ม.ป.ท.Sirinapa Kijkuakul. 2006. Case studies of teaching and learning about photosynthesis in Thailand : an innovative approach /. ม.ป.ท.:Kasetsart University,;Sirinapa Kijkuakul. Case studies of teaching and learning about photosynthesis in Thailand : an innovative approach /. ม.ป.ท.:Kasetsart University, 2006. Print.