Khuleesap, P.; Wannupatam, B.; Triwiset, B. The Outcomes of Learning Management on Economics Using the CO-5 STEPs Learning Process Integrated with Gamification Techniques for Matthayomsueksa 2 Students: The Outcomes of Learning Management on Economics Using the CO-5 STEPs Learning Process Integrated with Gamification Techniques for Matthayomsueksa 2 Students. rtnb 2025, 7, 69-82.