Dichlorodiphenyltrichloroethane in environmental samples and human blood of Chittagong chemical complex area and pesticide residues in some vegetable samples Farzana Khalil Khalil, Farzana D. D. T. (Insecticide) 632.9517 KHD Thesis (Ph.D.)--Department of Chemistry, University of Dhaka, Session: 2013-14 Includes bibliographical references Dhaka : University of Dhaka, 2017 2017 2017 Text [9], xxvii, 245 p. : eng