Aumporn Panya และ Bangorn Benjathikul;Kamolporn Kalyanamitha;Jarin Suankaew;Yuthapong Leelakijpaisal. (2022) The Preparation Before the Retirement of Bangkok Metropolitan Administration Staffs. <i>PSAKU International Journal of Interdisciplinary Research</i>, <i>11</i>(1), 61-65.Aumporn Panya และ Bangorn Benjathikul;Kamolporn Kalyanamitha;Jarin Suankaew;Yuthapong Leelakijpaisal. "The Preparation Before the Retirement of Bangkok Metropolitan Administration Staffs". PSAKU International Journal of Interdisciplinary Research 11 (2022):61-65.Aumporn Panya และ Bangorn Benjathikul;Kamolporn Kalyanamitha;Jarin Suankaew;Yuthapong Leelakijpaisal. The Preparation Before the Retirement of Bangkok Metropolitan Administration Staffs. PSAKU International Journal of Interdisciplinary Research:ม.ป.ท. 2022.