Siritawee-at, Patsinee, and Montha Chumsukon. 2023. “The development of analytical thinking ability and summarization writing ability of grade 6 students using crystal based learning with info graphic”. Journal for Developing the Social and Community 10 (3). Bangkok, Thailand:425-36. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/271972.