Media type: E-Article Title: Perspective of Public Service Improvement from past to Present and Future: A Case of Thailand Contributor: Ongsakul, Viput Published: Elsevier BV, 2019 Published in: SSRN Electronic Journal (2019) Language: English DOI: 10.2139/ssrn.3315049 ISSN: 1556-5068 Keywords: Pharmacology (medical) Origination: Footnote: