SUBJECT
Electronic books
601
Management
126
Data processing
74
Mathematical models
65
Design and construction
55
Research
55
Accounting
52
Mathematics
52
Methodology
42
Statistical methods
41
Project management
40
Environmental aspects
39
History
39
Strategic planning
39
Psychology
37
Calculus
36
Statistics
32
Finance
31
Materials
31
Economic aspects
30
Philosophy
30
Information technology
29
Chemistry
28
Mathematical statistics
28
Technological innovations
27
Analysis
26
Physics
26
Social aspects
26
Differential equations
25
Thermodynamics
25
Wireless communication systems
25
Social sciences
23
Study and teaching
23
Ecology
22
Marketing
22
Biochemistry
21
Data mining
21
Food
21
History and criticism
21
Leadership
21
Planning
21
Chemistry, Organic
20
Industrial management
19
Probabilities
19
Systems engineering
19
Computer networks
18
Computer simulation
18
Econometrics
18
Social media
18
Decision making
17
more ...