Witsanu Supandee, Chitphon Yachulawetkunakorn. 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. pijss [Internet]. 2026 Jul. 31 [cited 2026 Aug. 6];12(2):53-65. Available from: https://grdspublishing.org/index.php/people/article/view/3281