N. Tupimai, S. Komanee, and W. . Panich, “Development of Computer Assisted Instruction of Mathematics in Lesson Money and Income-Expense Accounts for 3rd Graders under the Association Center 8, the Office of Primary Education Area 1, Chantaburi Province”, edu-rmu, vol. 17, no. 1, pp. 299–307, Mar. 2020.