This chart shows the percentage of citations to Boo Cheong Khoo's peer-reviewed articles that originate from Boo Cheong Khoo's own papers, i.e., papers where Boo Cheong Khoo is one of the authors. A self-citation occurs when the citing paper lists Boo Cheong Khoo as an author. Elevated rates may reflect a small co-author network or a narrow research focus.