共 73 条
[64]
Strong, 2009, NEW DIRECTIONS STUDE, V126, P45, DOI DOI 10.1002/SS.315
[65]
Summerlot J., 2009, NEW DIRECTIONS STUDE, V2009, P71, DOI [10.1002/ss.318, DOI 10.1002/SS.318]
[67]
Tanielian T., 2008, MONOGRAPH SERIES MG
[68]
Tinto V., 2003, J I RES, V9, P48
[69]
Tinto V, 2006, J COLL STUD RETENT-R, V8, P1
[70]
Vance ML, 2009, J POSTSECOND EDUC DI, V22, P18