R. . Wichitchan, K. Chanmungpak, and W. . Khemphong, “The Motivation of Personal Performance Effect Efficiency and Effectiveness to Personal Performance Administration Organization, Chang Klang District, Nakhon Si Thammarat Province: Keywords: Motivation, Personnel, Performance”, j.Chalermkarnchana, vol. 9, no. 1, p. 71, Apr. 2022.