ธรรมลังกา ป., and เส็งศรี ส. “THE EFFECT OF USING LEARNING DOCUMENT WITH AUGMENTED REALITY TECHNOLOGY ABOUT CHINESE PINYIN FOR MATTAYOMSUKSA 4 STUDENTS”. ECT Education and Communication Technology Journal, vol. 16, no. 20, June 2021, pp. 32-43, https://so01.tci-thaijo.org/index.php/ectstou/article/view/243041.