宋劲著. (2019). 捕捉商机. 江苏凤凰美术出版社.
Lua i Stíl Chicago (17ú heag.)宋劲著. 捕捉商机. 江苏凤凰美术出版社, 2019.
Lua MLA (8ú heag.)宋劲著. 捕捉商机. 江苏凤凰美术出版社, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)