③ In-text citations 2)Two authors Flowerdew and Li(2007a)highlight approaches which emphasize developmental and disciplinary perspectives. low-proficiency English L2 university students copied excerpts of the source text more frequently than high-proficiency students (Johns Mayes,1990).In-text citations 2) Two authors Flowerdew and Li (2007a) highlight approaches which emphasize developmental and disciplinary perspectives. low-proficiency English L2 university students copied excerpts of the source text more frequently than high-proficiency students (Johns & Mayes, 1990)