Roble, Dennis B. Differential calculus : a creativity development approach worktext by dennis B. Roble. -- - Manila, Philippines: Mindshapers Co, Inc. 2020 - x, 160 pages :illustrations; 23 cm. Includes bibliographical references. English ISBN: 9786214062973 Subjects--Topical Terms: Mathematics - calculus Dewey Class. No.: 515.63 R571d