time has nearly 10 years of research and work in many parts of the world butVietnam is still where he returned and sticking. The work of teaching, consulting andoutside the country had already taken quite a long time but he is still actively involved in the ongoingCommunity project of the "Saigon children's Charity", "World Vision". He was ed.many books on methods of evaluating the development of early childhood and developmentlive for preschool as "66 games develop team spirit for the youngkindergarten "(Vietnam Education PUBLISHING HOUSE, 2007)," Kid learning loving "(Educational PUBLISHING HOUSEVietnam-2013), etc.
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