Sirichokchaitrakool, S., Boonpo, P. and Srichinda, M. 2025. The study of problem-solving abilities by digital games-based learning (DGBL) together with visual thinking; social studies for grade 1 students. Srinakharinwirot Research and Development Journal of Humanities and Social Sciences. 17, 1, January-June (Jun. 2025), 1–15, Article 267714.