Witsanu Supandee, and Chitphon Yachulawetkunakorn. 2026. “EFFECTS OF HIGH SCHOOL–LED CAMP ON ELEMENTARY STUDENTS’ SCIENCE LEARNING MOTIVATION: A PRETEST–POSTTEST STUDY: Received: 02nd March 2026, Revised: 09th April 2026, 12th May 2026, Accepted: 24th July 2026, Date of Publication: 31st July 2026”. PEOPLE: International Journal of Social Sciences 12 (2):53-65. https://doi.org/10.20319/pijss.2026.122.5365.