Nikorn Nilpong. (2026) Development of an Active Learning Model Integrated with Positive Teacher–Student Relationships (PEACE2 Model) to Enhance Problem-Solving Skills and Learning Achievement in Physics for Grade 12 Students at Srikoonwittayabunlung School. <i>Journal of Science and Science Education</i>, <i>9</i>(1), 76-89.Nikorn Nilpong. "Development of an Active Learning Model Integrated with Positive Teacher–Student Relationships (PEACE2 Model) to Enhance Problem-Solving Skills and Learning Achievement in Physics for Grade 12 Students at Srikoonwittayabunlung School". Journal of Science and Science Education 9 (2026):76-89.Nikorn Nilpong. Development of an Active Learning Model Integrated with Positive Teacher–Student Relationships (PEACE2 Model) to Enhance Problem-Solving Skills and Learning Achievement in Physics for Grade 12 Students at Srikoonwittayabunlung School. Faculty of Science, Ubon Ratchathani University:ม.ป.ท. 2026.