Gaya APA

AL, G, D, E. (2018). MATHEMATICAL OLYMPIAD IN CHINA (2011-2014): PROBLEMS AND SOLUTIONS . : World Scientific Publishing Co.

Gaya MLA

AL, GOODMAN, DAVID, ET. "MATHEMATICAL OLYMPIAD IN CHINA (2011-2014): PROBLEMS AND SOLUTIONS". : World Scientific Publishing Co, 2018. S2-Pendidikan Bahasa Arab.