P2 Study advice

I completed level 2 with the June sitting and will now be tackling p2 for the Dec sitting.

My study method for the majority of the previous papers is to use OT lectures, notes and BPP revision kit along with the published ACCA technical articles.

I was wondering if that is enough for these papers especially P2 as it seems to be one of the largest and hardest papers to past based on what I have heard.