Nantawat Singkham และ Sirivadee Wiwithkhunakorn. (2021) Factors Influencing the Efficiency of Work of Personnel in the Legal and Land Ownership Department, Nakhon Ratchasima Province. <i>International Journal of Sociologies and Anthropologies Science Reviews (IJSASR)</i>, <i>1</i>(4), 14_23.Nantawat Singkham และ Sirivadee Wiwithkhunakorn. "Factors Influencing the Efficiency of Work of Personnel in the Legal and Land Ownership Department, Nakhon Ratchasima Province". International Journal of Sociologies and Anthropologies Science Reviews (IJSASR) 1 (2021):14_23.Nantawat Singkham และ Sirivadee Wiwithkhunakorn. Factors Influencing the Efficiency of Work of Personnel in the Legal and Land Ownership Department, Nakhon Ratchasima Province. DR.KEN Institute of Academic Development and Promotion.:ม.ป.ท. 2021.