Ratih, L. P., and H. Santosa. “The Benefit of Using Plastic-Covered Mattresses and Pillows on the Frequency of Asthma Attacks in Children With House Dust Mite Allergy”. Paediatrica Indonesiana, Vol. 45, no. 2, Oct. 2016, pp. 60-4, doi:10.14238/pi45.2.2005.60-4.