3HORNBY A S, TURNBULL J, LEA D, et al. Oxford Advanced Learner's Dictionary of current English[M]. Oxford: Oxford University Press, 2010.
4BONANNO G A, KALTMAN S. The varieties of grief experience[J]. Clinical Psychology Review, 2001, 21(5): 705-734.
5BOWLBY J. Attachment and loss: Loss, sadness and depression [M]. New York: Basic, 1980.
6FREUD S. A general selection from the works of Sigrnund Freud [M]. New York: Live right Publishing, 1917: 124-140.
7STROEBE M S, SCHUT H. The dual process model of coping with bereavement: Rationale and description[J]. Death Studies, 1999, 23(3): 197-224.
8STROEBE M S, SCHUT H, STROEBE W. Attachment in coping with bereavement: A theoretical integration[J]. Review of General Psychology, 2005, 9(1): 48-66.
9WORDEN W J. Grief counseling and grief therapy: A handbook for the mental health practitioner[M]. New York, NY: Springer, 2009.
10STROEBE M S, SCHUT H. The dual process model of coping with bereavement: A decade on[J]. Omega: Journal of Death & Dying, 2010, 61(4): 273-289.