Gaya APA

Yang, X., Nuersan, R. (2008). The study and practice of Web-based learning assessment in open and distance education . Jakarta: Asia Association of Open Universities.

Gaya MLA

Yang, Xiaotang., Nuersan, Rehati. "The study and practice of Web-based learning assessment in open and distance education". Jakarta: Asia Association of Open Universities, 2008. Artikel.