Alam, Tariq, et al. “COMPARISON OF POSITIVITY OF TUBERCULIN SKIN TEST WITH DIAGNOSTIC BCG IN CHILDREN SUFFERING FROM TUBERCULOSIS”. Journal of Ayub Medical College Abbottabad, vol. 32, no. 2, Mar. 2020, pp. 204-7, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/6682.