00774nam a2200229Ia 4500 0000016643 20251012174547.0 981208s1976 fr 00 eng c 9231013742 eng Q183.4 Q183.4.S67 R26 1976 Integrated science in the junior secondary school in Sri Lanka by A. M. Ranaweera Paris Unesco Press 1976 31 p. ; 21 cm. Curriculum planning Sri Lanka Interdisciplinary approach in education Sri Lanka Interdisciplinary approach in education Sri Lanka Science Study and teaching (Secondary) Sri Lanka Science Study and teaching Sri Lanka 6184 6184