Fauzi, Ekha Rifki, Peter Xenos, and Montakarn Cheumchit. 2018. “Prevalence and Factors Associated With Sexual Activities Among High School Students in Kendal Regency of Indonesia”. Journal of Health Research 32 (Suppl.1):S20-S28. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/164562.