Chapman, D. P., Croft, J. B., Liu, Y., Perry, G. S., Presley-Cantrell, L. R., & Ford, E. S. (2013). Excess Frequent Insufficient Sleep in American Indians/Alaska Natives. Hindawi Publishing Corporation.

Chapman, Daniel P., Janet B. Croft, Yong Liu, Geraldine S. Perry, Letitia R. Presley-Cantrell, و Earl S. Ford. Excess Frequent Insufficient Sleep in American Indians/Alaska Natives. Hindawi Publishing Corporation, 2013.

Chapman, Daniel P., et al. Excess Frequent Insufficient Sleep in American Indians/Alaska Natives. Hindawi Publishing Corporation, 2013.