F. Halek and A. Kavousi and F. Hassani, Evaluation of Indoor-Outdoor Particle Size Distribution in Tehran's Elementary Schools. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. September 2009, vol. 33(9). 522 - 525 [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/8988.