Promkanya, Anucha, and Amornrat Parasri. 2025. “Effects of a Self-Efficacy Promotion Program Using Infographics on Perceived Self-Efficacy Perception and Language Development Promotion Behaviors for Preschool Children Among Early Childhood Teachers”. Journal of health and health management 11 (1). Bangkok, Thailand:48-60. https://he01.tci-thaijo.org/index.php/slc/article/view/274520.