(1)
Waiyadet, P.; AreeraksakulKonglok, S. .; Thueakthong, V. . ACTION RESEARCH TO STUDY MATHEMATICS ACHIEVEMENT BY USING MATHEMATICS LEARNING ACTIVITIES WITH ONLINE FLIPPED CLASSROOM IN THE TOPIC OF PYRAMID CONE AND SPHERE FOR GRADE 9 STUDENTS AT LABORATORYSCHOOL OF PHRANAKHON SI AYUTTHAYA RAJABHAT UNIVERSITY. AJPPA 2024, 6, 33-48.