Differential calculus: a work text (revised edition) 
Corazon S. Aspuria ; Liberty Gay C. Manalo ; Ma. Felisa A. Monila ; Ederlina B. Maniquiz-Sagales 
 - Manila: Unlimited Books Library Services & Publishing Inc.  2019 
 - vi, 240p. ; 25.4cm. 
<br/><br/> includes bibliography 
<br/><br/><label>ISBN: </label>9786214270491 
<br/><br/><label>Dewey Class. No.: </label>Fil 515 D569 2019