For refreshing memory a witness may refer a

Solution

As per S. 159. Refreshing memory.   –– A witness may, while under examination, refresh  his memory by referring to any writing made by himself at the time of the transaction concerning which he is questioned, or so soon afterwards that the Court considers it likely that the transaction was at that time fresh in his memory. The witness may also refer to any such writing made  by any other person, and read by the witness within the time aforesaid, if when he read it he knew it to be correct