References
- Biilmann , O. 1986 . Danish pupil's knowledge of the geography of European countries . Internationaler Schulbuchforschung , 8 (2) : 195 – 212 .
- Biilmann , O. 1988 . “ The development of environmental literacy through geography ” . In Developing Skills in Geographical Education , International Geographical Union Commission on Geographical Education Edited by: Gerber , R. and Lidstone , J. 129 – 134 . Brisbane : Jacaranda Press .
- United Nations Environment Programme . 1990 . GRID Global Resource Information Database , Nairobi : UNEP .
- Niemz , G. International project on geographical achievements of students . Proceedings IGU Geographical Education Commission Skills in Geographical Education Symposium ‘88 . Brisbane. pp. 92 – 109 . Brisbane College of Advanced Education .