(2019). Guide to authers (download- printable). test, 23(Issue 1), 5-12.
. "Guide to authers (download- printable)". test, 23, Issue 1, 2019, 5-12.
(2019). 'Guide to authers (download- printable)', test, 23(Issue 1), pp. 5-12.
Guide to authers (download- printable). test, 2019; 23(Issue 1): 5-12.