Maharattanawong, S. 2020. A Chikungunya fever outbreak investigation in Paknam Langsuan Sub-district, Langsuan District, Chumphon Province, February-March 2019. Region 11 Medical Journal. 34, 3 (Sep. 2020), 73–83. DOI:https://doi.org/10.14456/reg11med.2020.6.