Hey zbest,
You got some good advice and a suggested resource in the Texam A&M site. I would second everything that was already said in how I would approach studying for any section of the exam. It's important to note that in order to maximize your retention of the information, that you continually switch up the presentation of the information. Doing so will allow your mind to constantly stay engaged with the concepts, making your sfudy sessions much more productive and efficient. So you asked whether you should use text, videos, etc...and I would say all of the above, plus the practice problems, and reference manual as suggested. When you find your mind wandering, switch it up and keep it fresh. Hope that helps, Good Luck!