Nguyen Thi Minh Ngoc, Le Thanh Huy, and 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, Vol. 8, no. 4, Dec. 2018, pp. 95-99, doi:10.47393/jshe.v8i4.229.