Teaching Rajasthan Librarian Grade-II 2024 Mock Test Library Science Information Sources & Services Reference Service
Which of the following are value added information services:
(i) Aggregator service
(ii) Referral service
(iii) Document delivery service
(iv) Research reports / Market survey reports
1
(i) and (iii) are correct.
2
(ii) and (iv) are correct.
3
(ii) and (iii) are correct.
4
(i) and (iv) are correct.