สำนักบรรณสารการพัฒนา (2022). เอกสาร 50th Anniversary of the Institute of Public Administration (IPA). Retrieved from: https://repository.nida.ac.th/handle/662723737/5775.
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เอกสาร 50th Anniversary of the Institute of Public Administration (IPA)
On behaif of Indiana University. I am delighted to extend special greetings to you on the 50th anniversary of the establishment of the Institute of Public Administration (IPA), the precursor of the National Institute of Development Administration (NIDA).