Muanphetch, C. ., Butsankot, A. ., Thongnopakun, S. ., & Maharachapong, N. . (2020). The effects of promoting proper sexual behaviors by positive youth development program among early adolescents, Mueang District, Chon Buri Province. Disease Control Journal, 46(1), 83–93. https://doi.org/10.14456/dcj.2020.9