Songkran Promwong. 2009. Construction of a model for developing intructional competency promoting prathom suksa 6 studies' mathematical process skills through knowledge management and action research. Chiang Mai:Chiang Mai University;
Songkran Promwong. (2009) Construction of a model for developing intructional competency promoting prathom suksa 6 studies' mathematical process skills through knowledge management and action research (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.
Songkran Promwong. Construction of a model for developing intructional competency promoting prathom suksa 6 studies' mathematical process skills through knowledge management and action research. Chiang Mai:Chiang Mai University, 2009.
Songkran Promwong. (2009) Construction of a model for developing intructional competency promoting prathom suksa 6 studies' mathematical process skills through knowledge management and action research (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.