
https://kgtv.vn/tin-tuc-va-su-kien/pho-giao-su-che-tao-may-bay-phun-thuoc-tru-sau
https://vnexpress.net/pho-giao-su-che-tao-may-bay-phun-thuoc-tru-sau-4053608.html

https://vnexpress.net/pho-giao-su-viet-lam-may-tu-dong-gieo-hat-bon-phan-cho-lua-4748919.html