Gaya APA

AL, N, Z, E. (2019). THEORY AND PROBLEMS FOR CHEMISTRY OLYMPIAD: CHALLENGING CONCEPTS IN CHEMISTRY . : World Scientific Publishing Co.

Gaya MLA

AL, NAN, ZHIHAN, ET. "THEORY AND PROBLEMS FOR CHEMISTRY OLYMPIAD: CHALLENGING CONCEPTS IN CHEMISTRY". : World Scientific Publishing Co, 2019. S2-Pendidikan Bahasa Arab.