ชัชวาลขาญชนกิจ เ., “the Influence Factors Of A Participation And Attitude On The Sufficiency Economy Philosophy Of The Elderly Life Quality In Chumphon Province: Influence Factors Of A Participation And Attitude On The Sufficiency Economy Philosophy Of The Elderly Life Quality In Chumphon Province”, J Admin Manag, vol. 11, no. 2, pp. 37–46, Sep. 2021.