Which of the following are examples of primary sources of data?
(a) Interview
(b) Diaries
(c) Census reports
(d) Observation
Choose the correct option:
1
(a) and (b)
2
(b) and (c)
3
(c) and (d)
4
(d) and (a)
Which of the following are examples of primary sources of data?
(a) Interview
(b) Diaries
(c) Census reports
(d) Observation
Choose the correct option: