Supaporn Theesoongnern และ Warawut Mahamit. (2026) HEALTH AND LEISURE TIME BEHAVIOR OF THE ELDERLY NAFAI SUBDISTRICT, MUANG CHAIYAPHUM DISTRICT CHAIYAPHUM PROVINCE. <i>Journal of Research and Innovation for Sustainability (JRIS)</i>, <i>3</i>(2), 1-14.Supaporn Theesoongnern และ Warawut Mahamit. "HEALTH AND LEISURE TIME BEHAVIOR OF THE ELDERLY NAFAI SUBDISTRICT, MUANG CHAIYAPHUM DISTRICT CHAIYAPHUM PROVINCE". Journal of Research and Innovation for Sustainability (JRIS) 3 (2026):1-14.Supaporn Theesoongnern และ Warawut Mahamit. HEALTH AND LEISURE TIME BEHAVIOR OF THE ELDERLY NAFAI SUBDISTRICT, MUANG CHAIYAPHUM DISTRICT CHAIYAPHUM PROVINCE. ห้างหุ้นส่วนจำกัด นวัตกรรมการเรียนรู้สร้างสรรค์:ม.ป.ท. 2026.