TY - BOOK ED - Seminar on Trends in Science Education (1989 : Singapore) ED - Kuok, M.H. ED - Das, N. P. TI - Trends in science education: proceedings of the Seminar ..., 1989, Singapore SN - 997162205x PY - 1989/// CY - Singapore PB - Singapore National Academy of Science KW - Science KW - Study and teaching KW - Singapore KW - Congresses ER -