SUBJECT
Juvenile literature
Science
153
Experiments
62
History
51
Biography
42
Mathematics
37
Social life and customs
36
Juvenile works
28
Electronic books
26
Study and teaching (Elementary)
21
Science projects
18
Study and teaching
18
Miscellanea
15
Ecology
14
Music
14
Problems, questions, exercises
13
Water
13
Children's stories, Filipino
12
Geography
12
Computers
11
Counting
11
English language
11
Handicraft
11
Number concept
11
BASIC (Computer program language)
10
Chemistry
10
Electricity
10
Food
10
Programming
10
Women
10
Animals
9
Human beings
9
Physics
9
Plants
9
Air
8
Botany
8
Vocational guidance
8
Children's stories, Philippine (English)
7
Ethnology
7
Genetics
7
Legends
7
Musical instruments
7
Natural history
7
Nature
7
Physical geography
7
Pictorial book
7
Pollution
7
Programming (Computers)
7
Sound
7
Technology
7
more ...