Those majors sound more suited to a commerce degree, yes? Any reason your not studying a commerce degree? Regardless, neither of these are actually offered as majors for an Arts degree.
Bachelor of Arts is a very broad area. You can see all the majors and there course structures here:
http://handbook.mq.edu.au/2017/DegreesDiplomas/Degree/Bachelor+of+Arts
Of those majors, the more management/commerce focused ones would be:
Arts Industries and Management - Specialises in management of performing and creative arts
Business Information Systems - Computing based course that does a lot of focus on IT project management and databases (I'm studying this, so let me know if you want more information)
Entrepreneurship - Fairly self explanatory
Environmental Management - Management of environmental risks and impacts. Less commerce focus, but with growing calls and requirements for businesses to reduce their environmental impact, it could be interesting and useful.
Environmental Law and Management - Similar to the above, with a more law and compliance based focus.
Human Resources- Managing people within businesses.
Information Systems and Business Analysis - Similar to the Business Information Systems major, with additional focus on analysis to provide a more broad skill set.
International Business - Probably the most "Commerce" like major, you'll cover a little bit of everything, but then have a focus on international businesses and the impact on Australia/Australian businesses.
Marketing - Again, fairly self explanatory.
There just some examples and obviously you can read through yourself and determine if any interest you