APA
Ymas S. E., . (2012). Differential calculus and application in business and economics, engineering and social science (wider perspective). Philippines: Sta. Monica Printing Corp.
Chicago
Ymas Sergio E, . 2012. Differential calculus and application in business and economics, engineering and social science (wider perspective). Philippines: Sta. Monica Printing Corp.
Harvard
Ymas S. E., . (2012). Differential calculus and application in business and economics, engineering and social science (wider perspective). Philippines: Sta. Monica Printing Corp.
MLA
Ymas Sergio E, . Differential calculus and application in business and economics, engineering and social science (wider perspective). Philippines: Sta. Monica Printing Corp. 2012.