Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Library Science Research Methodology Metric Studies in LIS
Which of the following is NOT a Types of Obsolescence?
(A). Synchronous studies
(B). Cross-sectional studies
(C). Diachronous studies
(D). Longitudinal studies
1
A and B
2
B and C
3
A and C
4
B and D