N. Chaiear, K. . Nirarach, T. . Kawamatawong, P. . Krisorn, and P. S. Burge, “Proportion of workers having work-related asthma symptoms in a cassava factory, Nakhon Ratchasima province, Thailand”, Asia Pac J Sci Technol, vol. 25, no. 02, pp. APST–25, Jun. 2020.