Suphaphong, S.; Wormoklalo, P.; Vajirapanyo, P.; Panyasaro, P.; Paenkrom, M. GUIDELINES FOR DEVELOPING ACHIEVEMENT MOTIVATION BASED ON BUDDHIST PSYCHOLOGY OF UPPER PRIMARY SCHOOL STUDENTS IN WANGNOI WITTHAYAPHUM SCHOOL, WANG NOI DISTRICT, PHRA NAKHON SI AYUTTHAYA PROVINCE. Education MCU 2026, 12, 595-604.