APA (7th ed.) Citation

Ma, H., & Liu, Y. Time junior middle school students invested to sports and their cognitive skill development: A time economics perspective. Nature Portfolio.

Chicago Style (17th ed.) Citation

Ma, Hongmei, and Yan Liu. Time Junior Middle School Students Invested to Sports and Their Cognitive Skill Development: A Time Economics Perspective. Nature Portfolio.

MLA (9th ed.) Citation

Ma, Hongmei, and Yan Liu. Time Junior Middle School Students Invested to Sports and Their Cognitive Skill Development: A Time Economics Perspective. Nature Portfolio.

Warning: These citations may not always be 100% accurate.