Khittaya Khumlaikaew. (2021) Leadership of Change in the 4.0 Era of District Administrative Administrators in Ban Laem District Phetchaburi Province. <i>Journal of Management Science Nakhon Pathom Rajabhat University</i>, <i>8</i>(2), 98-110.Khittaya Khumlaikaew. "Leadership of Change in the 4.0 Era of District Administrative Administrators in Ban Laem District Phetchaburi Province". Journal of Management Science Nakhon Pathom Rajabhat University 8 (2021):98-110.Khittaya Khumlaikaew. Leadership of Change in the 4.0 Era of District Administrative Administrators in Ban Laem District Phetchaburi Province. Faculty of Management Science Nakhon Pathom Rajabhat University.:ม.ป.ท. 2021.