Nummeesri, Thiwat, and Angkana Tungkasamit. 2023. “The development of self-confidence using The C3 Framework learning management with flipped classroom techniques in The S 32103 Social studies course in grade 11 students at Mattayomtaladyaiwittata School,Khon Kaen”. Journal for Developing the Social and Community 10 (1). Bangkok, Thailand:391-406. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/261299.