Nattawut Pathomjaroenponkul และ Sakolrat Kaewdee. (2026) Effects of Inquiry Instruction with Gamification on Concepts and Motivation towards Learning Biology of Upper Secondary School Students. <i>An Online Journal of Education (OJED)</i>, <i>21</i>(1), 1-18.Nattawut Pathomjaroenponkul และ Sakolrat Kaewdee. "Effects of Inquiry Instruction with Gamification on Concepts and Motivation towards Learning Biology of Upper Secondary School Students". An Online Journal of Education (OJED) 21 (2026):1-18.Nattawut Pathomjaroenponkul และ Sakolrat Kaewdee. Effects of Inquiry Instruction with Gamification on Concepts and Motivation towards Learning Biology of Upper Secondary School Students. Centre for Education Innovation, Print and Online Media:ม.ป.ท. 2026.