Danpradit, prapaiwan, and P. Danpradit. “Family Problems of Adolescent Students in the Sex-Risk Group and the Non Sex-Risk Group in a Province in the Metropolitan Area of Bangkok”. Vajira Medical Journal : Journal of Urban Medicine, vol. 66, no. 3, June 2022, pp. 189-98, doi:10.14456/vmj.2022.19.