Double major in Accounting or Master in Accounting for CPA? (bachelor, bachelor degree)

[moe_us]

Hello people, 
I have a bachelor degree in economics and I have taken four accounting courses. I want to work in the field of accountancy preferable in public accounting. I know company's (PWC or any good company) require accounting major to work in the field of accounting. I am confused I want to go back to school part time to pursue accounting career and I am not sure whether should I go for a bachelor degree in accounting from a okay school or should I study for GMAT and go for master degree in accounting? either way I have to pay tuition from my pocket or take the student loan out. I am currently working as a accounts payable/finance associates temp for fortune 50 company. My long-term is to be become CPA . I am not sure what path to take? please advice what you guys think I should do? 

 

P.S. I already have taken four accounting courses during my undergrad