Dr. Chittra Pheechaphat or the principal of 072 the institute  of 072 Mental arithematic by Dr. Miang was invited as the special lecturer for training of speed math curriculum for  the teamwork and teachers of Traisat Witaedsueksa school in Uttaradit province between 30 January to 1 February, 2017 at Kiengtalay Resort Hotel in Rayong province.




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