Congratulations to Assoc. Prof. Dr. Yothin Sawangdee, Institute of Population and Social Research, Mahidol University received an award of “Sam Sorn” from Sukhothai Thammathirat Open University on the 44th anniversary of the establishment of Sukhothai Thammathirat Open University on September 5, 2022, as an academic contributor in research development for Sukhothai Thammathirat Open University at the Sukhothai Thammathirat Open University.