Nguyen Thi Minh Ngoc; Le Thanh Huy; Phung Viet Hai. THE PROCESS OF DEVELOPING INTEGRATED TEACHING TOPICS FOR NATURAL SCIENCE AT SECONDARY SCHOOL TOWARDS THE NEW GENERAL EDUCATION PROGRAM . UED Journal of Social Sciences, Humanities and Education, v. 8, n. 4, p. 95-99, 25 Dec. 2018.