Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Library Science Information Sources & Services Reference Service
which of the following are the Crateria for Efficiency for DDS
(A). Speed
(B).Cost
(C). Electronic DDS
(D). Satisfaction Level
1
A, B and C.
2
B, C and D
3
A, B and D
4
A, C and D