و آر ایل:https://c8.alamy.com/comp/2HFHWAW/ddt-dichlorodiphenyltrichloroethane-molecule-controversial-pesticide-used-in-agriculture-and-for-malaria-disease-vector-control-skeletal-formula-2HFHWAW.jpg
و آر ایل:https://www.alamy.com/stock-photo/ddt-pesticide.html?imgt=8
