Integrated science in the junior secondary school in Sri Lanka text f Paris Unesco Press 1976 monographic e eng
print
31 p. ; 21 cm. by A. M. Ranaweera 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 Q183.4 Q183.4.S67 R26 1976 9231013742 9812 20251012174547.0 0000016643