P. S. S. . (Siwankam), C. . Siriwat, and P. W. . (Booncham), “A TRI-SIKKHA BASED INSTRUCTIONAL SYSTEM TO ENHANCE ACHIEVEMENT LEARNING DEVELOPMENT OF SOCIAL TEACHING STUDIES FOR HIGH SCHOOL STUDENTS NAKORNSAWAN PROVINCE”, JMND, vol. 11, no. 10, pp. 295–307, Oct. 2024.