Pavin Chinachoti ภ. ช., Tongfu Siriwongse ท. ศ. and ชินะโชติ ภ. (2018) “Factors Affecting Work Happiness of Before Retirement Employee in Industry, Nonthaburi Province”, Dusit Thani College Journal, 12(2), pp. 319–334. available at: https://so01.tci-thaijo.org/index.php/journaldtc/article/view/126013 (accessed: 16 March 2025).