Hearing parents and using sign language to communicate with their deaf child

Instructions
I want you to make annotated bibliography for 5 studies, researches, related to these questions:
1. Do hearing parents of deaf child use sign language to communicate with their child?
2. Do hearing parents of deaf child encourage their child to use sign language?
3. Do hearing parents of deaf child prevent their child from using sign language?
4. Do hearing parents of deaf child face difficulties in the use of sign language to communicate with their child?
5. Did hearing parents of deaf child study sign language?
6. Did hearing parents of deaf child receive training courses in sign language?
7. What is the communication method used by parents with their child if they do not use sign language?
Every study must be related to at least one question or more from above questions. I chose you because you did a good job for a similar work before. I will provide you an example, which you did before, to follow it, but notice it was about different topic.
This time the 5 studies will be separate. Once you provide me these 5 studies, I will ask you next time to make 5 other studies about the same topic. Then I will ask you to mix all the 10 studies and make connection between them in about 15 pages discussing 1 topic.
For now I just need 5 studies as I mentioned early. I gave you all details to make a good plan for coming work.
Please if you have questions, let me know.