Phitchakorn Khonglarp และ Jantana Sansook. (2022) The Affecting of Service Innovations Capability on the Efficiency of the Provincial Electricity Authority Employees in Phra Nakhon Si Ayutthaya, Thailand. <i>PSAKU International Journal of Interdisciplinary Research</i>, <i>11</i>(1), 38-47.Phitchakorn Khonglarp และ Jantana Sansook. "The Affecting of Service Innovations Capability on the Efficiency of the Provincial Electricity Authority Employees in Phra Nakhon Si Ayutthaya, Thailand". PSAKU International Journal of Interdisciplinary Research 11 (2022):38-47.Phitchakorn Khonglarp และ Jantana Sansook. The Affecting of Service Innovations Capability on the Efficiency of the Provincial Electricity Authority Employees in Phra Nakhon Si Ayutthaya, Thailand. PSAKU International Journal of Interdisciplinary Research:ม.ป.ท. 2022.