Wongpimoln ฺBoonyada, Ladda Pholputta, Chanidawadee Sayuen, Chotravee Injumpa, Panngam Wannapuek, and Nitchapanrawee Phengphol. 2022. “ Roi Et province”. Thai Red Cross Nursing Journal 15 (1):177-91. https://he02.tci-thaijo.org/index.php/trcnj/article/view/248357.