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I don't have any reading suggestions but can tell you to develop a plan that is key for your home. Look at all of the "what if's" you can think of. Then look for more. My wife and I have a plan for each point of entry in our home. Then we started hearing about BG's driving cars into homes so we developed a plan for that as well.
I will say that we have a safe room that is large enough for both of us and contains all but our bedside weapons and that is where my wife will go. From there she can monitor the cameras in the house and see what is going on. It also allows her to see if I am in trouble and to relay to LEO's my location as well as any BG. We had this installed a few years ago when we remodeled because there had started being quite a bit of crime in our area and also because of tornado's (I thought it was a bit overboard but it makes her feel safer). I will search the house while she goes in the safe room unless I am drastically out numbered or can't get a tactical advantage, in which case I will also go in and watch.
Short of a safe room, I like Jusme's plan a lot