Pulling Profit Centers from AR

Hi,

We are currently using 0FI_AR_4 extractor to pull AR related information. One of our requirements requires us to analyze by Profit Centers. From what I understand profit centers are derived at material level hence the current extractors is not able to pick up this information if there are more than 1 material. How do I go about pulling this information ? I believe data needs to be pulled from table BSAS / BSIS ? Should i use 0FI_GL_4 instead ?