Mazumder, J., S. Ahmed, A. Mollah, A. Kabir, and N. Nahar. “Spirometric Standards for Healthy Children Aged 6-15 Years in a School of Dhaka City, Bangladesh”. Bangladesh Journal of Child Health, Vol. 29, no. 3, 1, pp. 88-92, doi:10.3329/bjch.v29i3.6187.