Classification
P - Language and Literature
30
D - World History
16
Q - Science
14
H - Social Science
13
B - Philosophy, Psychology, Religion
12
R - Medicine
9
K - Law
8
J - Political Science
4
M - Music
3
N - Fine Arts
3
T - Technology
3
G - Geography, Anthropology, Recreation
2
C - Historical Sciences
1
S - Agriculture
1