Principles of marketing 
Camilar-Serrano, Angelita Ong. 
 -  Unlimited Books Library Services & Publishing Inc.,  2021 
 - x, 394 p. 
978-9-71965430-8
Marketing.
F 658.8 C183 2021
                        978-9-71965430-8
Marketing.
F 658.8 C183 2021