Worktext in college trigonometry 
Domingo, Alleli C. 
 - 2nd ed. 
 -  C & E Publishing, Inc.,  2015 
 - vii, 187 p. 
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<br/><br/><label>ISBN: </label>978-9-71980262-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>F 516.24 W92699 2015