Gunathilaka, H.A.J.2014-06-032014-06-031992Paper presented at the Seminar workshop of the Sri Lankan WeedScience Society, Agrarian Research and Training Institute,Colombo, 11 July, Sri Lanka:p...https://dl-cri.nsf.gov.lk//handle/1/3450WeedsWeed managementReviewsEcological role of weeds in nature