Miss Sirirat Siricheepchaiyan, Deputy Director of Administration of Mahidol Wittayanusorn School and team met with Assoc.Prof. Sirinan Kittisuksathit, the Director of Thailand Centre for Happy Worker Studies: TCHS, Institute for Population and Social Research, Mahidol University to discuss ways of cooperation to explore the happiness of personnel under Mahidol Wittayanusorn School. The event was held at Phayathai Room, IPSR.