Zadan Khalef, R. (2009). Magic square. , 6(3), 618-620.
Rifat Zadan Khalef. "Magic square". , 6, 3, 2009, 618-620.
Zadan Khalef, R. (2009). 'Magic square', , 6(3), pp. 618-620.
Zadan Khalef, R. Magic square. , 2009; 6(3): 618-620.


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