Differential calculus :  a work text  / 
Corazon S. Aspuria ; Liberty Gay C. Manalo ; Ma. Felisa A. Molina ; Ederlina B. Maniquiz-Sagales 
 - rev.ed. 
 - Manila :  Unlimited Books Library Services & Publishing Inc.,  2019. 
 - vi, 240 p.; 25.1cm. 
<br/><br/>includes bibliography 
<br/><br/><label>ISBN: </label>9786214270491 
<br/><br/><label>Dewey Class. No.: </label>Fil 515 D569 2019