Pholyiem J, Phorntaweekul S. PREDICTION-OBSERVATION-EXPLANATION LEARNING ACTIVITIES TO DEVELOP SKILLS IN THE INTEGRATED SCIENCE PROCESS AND ACHIEVEMENT FOR MATHAYOMSUKSA 1 STUDENTS. AJMBU [internet]. 2024 Dec. 27 [cited 2025 Apr. 15];13(2):230-41. available from: https://so01.tci-thaijo.org/index.php/AJMBU/article/view/277834