SUBJECT
Programming
20
Natural history
15
Electronic data processing
12
Computers
11
IBM Personal Computer
9
BASIC (Computer program language)
8
Climatic changes
8
Database management
8
Microcomputers
8
Research
8
PASCAL (Computer program language)
7
Nature conservation
6
Apple II (Computer)
5
Cultural property
5
Data processing
5
HTML (Document markup language)
5
Operating systems (Computers)
5
Protection
5
Statistics
5
Biological diversity conservation
4
Bird watching
4
Computer software
4
Coral reefs and islands
4
Electronic digital computers
4
Environmental aspects
4
Environmental protection
4
Mammals
4
Multimedia systems
4
Pascal (Computer program language)
4
Algebra
3
Amphibians
3
Animals
3
Basic (Computer program language)
3
Biodiversity conservation
3
Birds
3
Calculus
3
Coastal ecology
3
Computer programs
3
Data base management
3
File organization (Computer science)
3
History
3
Integrated software
3
MS-DOS (Computer file)
3
Marine mammals
3
Mathematical statistics
3
Mathematics
3
Methodology
3
National parks and reserves
3
Probabilities
3
Programming languages (Electronic computers)
3
more ...