User talk:Butterflygirl33/Adolescent Sleep/Bibliography

1. https://www.sciencedirect.com/science/article/pii/S0140197118300940 2. https://www.sciencedirect.com/science/article/pii/S0960982204009285 3. https://www.tandfonline.com/doi/abs/10.1080/15374416.2017.1357126