Gaya APA

L., M., F., B. (2004). Essential of Mathematics for Elemantary Teach.6Ed. (6). : John Wiley & Sons,Inc..

Gaya MLA

L., MUSSER,Gary., F., BURGER,William. "Essential of Mathematics for Elemantary Teach.6Ed.". 6 : John Wiley & Sons,Inc., 2004. Textbook.