Azhar, Muhammad, et al. “Determination of Levels of Anxiety and Its Association With Demographic Characteristics of Adolescent Girls in Secondary Schools of Lahore: Levels of Anxiety in Adolescent Girls”. Pakistan BioMedical Journal, vol. 6, no. 06, June 2023, pp. 11-15, https://doi.org/10.54393/pbmj.v6i06.890.